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Finding the Fourth Proportional to 487,272.70, 730,909.05 and 238,440.70

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Solution

The fourth proportional to 487,272.70, 730,909.05 and 238,440.70 is: 357,661.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,272.70 : 730,909.05 = 238,440.70 : x
  2. Step 2: Convert to fraction form
    487,272.70/730,909.05 = 238,440.70/x
  3. Step 3: Cross multiply
    487,272.70x = 730,909.05 × 238,440.70
  4. Step 4: Simplify right side
    487,272.70x = 174,278,465,518.34
  5. Step 5: Solve for x
    x = 174,278,465,518.34/487,272.70
  6. Step 6: Final answer
    x = 357,661.05

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.