Home / 521,513.12-782,263.08-166,522.64

Finding the Fourth Proportional to 521,513.12, 782,263.08 and 166,522.64

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Solution

The fourth proportional to 521,513.12, 782,263.08 and 166,522.64 is: 249,781.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,513.12 : 782,263.08 = 166,522.64 : x
  2. Step 2: Convert to fraction form
    521,513.12/782,263.08 = 166,522.64/x
  3. Step 3: Cross multiply
    521,513.12x = 782,263.08 × 166,522.64
  4. Step 4: Simplify right side
    521,513.12x = 130,264,513,256.13
  5. Step 5: Solve for x
    x = 130,264,513,256.13/521,513.12
  6. Step 6: Final answer
    x = 249,781.85

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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.