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Finding the Fourth Proportional to 371,700.91, 512,937.29 and 218,748.11

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Solution

The fourth proportional to 371,700.91, 512,937.29 and 218,748.11 is: 301,866.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,700.91 : 512,937.29 = 218,748.11 : x
  2. Step 2: Convert to fraction form
    371,700.91/512,937.29 = 218,748.11/x
  3. Step 3: Cross multiply
    371,700.91x = 512,937.29 × 218,748.11
  4. Step 4: Simplify right side
    371,700.91x = 112,204,060,359.94
  5. Step 5: Solve for x
    x = 112,204,060,359.94/371,700.91
  6. Step 6: Final answer
    x = 301,866.52

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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.