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Finding the Fourth Proportional to 487,434.92, 731,272.05 and 167,591.63

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Solution

The fourth proportional to 487,434.92, 731,272.05 and 167,591.63 is: 251,428.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,434.92 : 731,272.05 = 167,591.63 : x
  2. Step 2: Convert to fraction form
    487,434.92/731,272.05 = 167,591.63/x
  3. Step 3: Cross multiply
    487,434.92x = 731,272.05 × 167,591.63
  4. Step 4: Simplify right side
    487,434.92x = 122,555,076,661.12
  5. Step 5: Solve for x
    x = 122,555,076,661.12/487,434.92
  6. Step 6: Final answer
    x = 251,428.60

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1.5x scale

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.