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Finding the Fourth Proportional to 487,333.40, 731,000.10 and 171,822.20

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Solution

The fourth proportional to 487,333.40, 731,000.10 and 171,822.20 is: 257,733.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,333.40 : 731,000.10 = 171,822.20 : x
  2. Step 2: Convert to fraction form
    487,333.40/731,000.10 = 171,822.20/x
  3. Step 3: Cross multiply
    487,333.40x = 731,000.10 × 171,822.20
  4. Step 4: Simplify right side
    487,333.40x = 125,602,045,382.22
  5. Step 5: Solve for x
    x = 125,602,045,382.22/487,333.40
  6. Step 6: Final answer
    x = 257,733.30

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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.