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Finding the Fourth Proportional to 310,772.52, 428,899.38 and 181,750.47

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Solution

The fourth proportional to 310,772.52, 428,899.38 and 181,750.47 is: 250,835.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,772.52 : 428,899.38 = 181,750.47 : x
  2. Step 2: Convert to fraction form
    310,772.52/428,899.38 = 181,750.47/x
  3. Step 3: Cross multiply
    310,772.52x = 428,899.38 × 181,750.47
  4. Step 4: Simplify right side
    310,772.52x = 77,952,663,897.71
  5. Step 5: Solve for x
    x = 77,952,663,897.71/310,772.52
  6. Step 6: Final answer
    x = 250,835.12

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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.