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Finding the Fourth Proportional to 292,503.60, 438,536.70 and 123,885.90

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Solution

The fourth proportional to 292,503.60, 438,536.70 and 123,885.90 is: 185,736.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,503.60 : 438,536.70 = 123,885.90 : x
  2. Step 2: Convert to fraction form
    292,503.60/438,536.70 = 123,885.90/x
  3. Step 3: Cross multiply
    292,503.60x = 438,536.70 × 123,885.90
  4. Step 4: Simplify right side
    292,503.60x = 54,328,513,762.53
  5. Step 5: Solve for x
    x = 54,328,513,762.53/292,503.60
  6. Step 6: Final answer
    x = 185,736.22

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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.