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Finding the Fourth Proportional to 371,500.08, 512,800.92 and 220,596

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Solution

The fourth proportional to 371,500.08, 512,800.92 and 220,596 is: 304,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,500.08 : 512,800.92 = 220,596 : x
  2. Step 2: Convert to fraction form
    371,500.08/512,800.92 = 220,596/x
  3. Step 3: Cross multiply
    371,500.08x = 512,800.92 × 220,596
  4. Step 4: Simplify right side
    371,500.08x = 113,121,831,748.32
  5. Step 5: Solve for x
    x = 113,121,831,748.32/371,500.08
  6. Step 6: Final answer
    x = 304,500.15

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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.