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Finding the Fourth Proportional to 292,499.60, 438,530.70 and 123,881.90

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Solution

The fourth proportional to 292,499.60, 438,530.70 and 123,881.90 is: 185,730.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,499.60 : 438,530.70 = 123,881.90 : x
  2. Step 2: Convert to fraction form
    292,499.60/438,530.70 = 123,881.90/x
  3. Step 3: Cross multiply
    292,499.60x = 438,530.70 × 123,881.90
  4. Step 4: Simplify right side
    292,499.60x = 54,326,016,324.33
  5. Step 5: Solve for x
    x = 54,326,016,324.33/292,499.60
  6. Step 6: Final answer
    x = 185,730.22

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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.