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Finding the Fourth Proportional to 614.69, 848.24 and 352.69

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Solution

The fourth proportional to 614.69, 848.24 and 352.69 is: 486.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.69 : 848.24 = 352.69 : x
  2. Step 2: Convert to fraction form
    614.69/848.24 = 352.69/x
  3. Step 3: Cross multiply
    614.69x = 848.24 × 352.69
  4. Step 4: Simplify right side
    614.69x = 299,163.20
  5. Step 5: Solve for x
    x = 299,163.20/614.69
  6. Step 6: Final answer
    x = 486.69

Related Problems

Find fourth proportional to 307.34, 424.12 and 176.34
Half scale
Find fourth proportional to 1,229.38, 1,696.48 and 705.38
Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.