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Finding the Fourth Proportional to 371,502.08, 512,803.68 and 220,598

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Solution

The fourth proportional to 371,502.08, 512,803.68 and 220,598 is: 304,502.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,502.08 : 512,803.68 = 220,598 : x
  2. Step 2: Convert to fraction form
    371,502.08/512,803.68 = 220,598/x
  3. Step 3: Cross multiply
    371,502.08x = 512,803.68 × 220,598
  4. Step 4: Simplify right side
    371,502.08x = 113,123,466,200.64
  5. Step 5: Solve for x
    x = 113,123,466,200.64/371,502.08
  6. Step 6: Final answer
    x = 304,502.91

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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.