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Finding the Fourth Proportional to 493,652.80, 740,824.80 and 213,371.20

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Solution

The fourth proportional to 493,652.80, 740,824.80 and 213,371.20 is: 320,206.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,652.80 : 740,824.80 = 213,371.20 : x
  2. Step 2: Convert to fraction form
    493,652.80/740,824.80 = 213,371.20/x
  3. Step 3: Cross multiply
    493,652.80x = 740,824.80 × 213,371.20
  4. Step 4: Simplify right side
    493,652.80x = 158,070,676,565.76
  5. Step 5: Solve for x
    x = 158,070,676,565.76/493,652.80
  6. Step 6: Final answer
    x = 320,206.18

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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.