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Finding the Fourth Proportional to 445.49, 614.76 and 259.08

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Solution

The fourth proportional to 445.49, 614.76 and 259.08 is: 357.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.49 : 614.76 = 259.08 : x
  2. Step 2: Convert to fraction form
    445.49/614.76 = 259.08/x
  3. Step 3: Cross multiply
    445.49x = 614.76 × 259.08
  4. Step 4: Simplify right side
    445.49x = 159,272.02
  5. Step 5: Solve for x
    x = 159,272.02/445.49
  6. Step 6: Final answer
    x = 357.52

Related Problems

Find fourth proportional to 222.75, 307.38 and 129.54
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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.