Home / 521,865.55-782,551.59-202,167.16

Finding the Fourth Proportional to 521,865.55, 782,551.59 and 202,167.16

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Solution

The fourth proportional to 521,865.55, 782,551.59 and 202,167.16 is: 303,155.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,865.55 : 782,551.59 = 202,167.16 : x
  2. Step 2: Convert to fraction form
    521,865.55/782,551.59 = 202,167.16/x
  3. Step 3: Cross multiply
    521,865.55x = 782,551.59 × 202,167.16
  4. Step 4: Simplify right side
    521,865.55x = 158,206,232,503.78
  5. Step 5: Solve for x
    x = 158,206,232,503.78/521,865.55
  6. Step 6: Final answer
    x = 303,155.16

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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.