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Finding the Fourth Proportional to 614.76, 848.46 and 352.79

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Solution

The fourth proportional to 614.76, 848.46 and 352.79 is: 486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.76 : 848.46 = 352.79 : x
  2. Step 2: Convert to fraction form
    614.76/848.46 = 352.79/x
  3. Step 3: Cross multiply
    614.76x = 848.46 × 352.79
  4. Step 4: Simplify right side
    614.76x = 299,323.96
  5. Step 5: Solve for x
    x = 299,323.96/614.76
  6. Step 6: Final answer
    x = 486.90

Related Problems

Find fourth proportional to 307.38, 424.23 and 176.39
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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.