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Finding the Fourth Proportional to 292,687.02, 438,830.76 and 155,930.58

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Solution

The fourth proportional to 292,687.02, 438,830.76 and 155,930.58 is: 233,789.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,687.02 : 438,830.76 = 155,930.58 : x
  2. Step 2: Convert to fraction form
    292,687.02/438,830.76 = 155,930.58/x
  3. Step 3: Cross multiply
    292,687.02x = 438,830.76 × 155,930.58
  4. Step 4: Simplify right side
    292,687.02x = 68,427,134,928.64
  5. Step 5: Solve for x
    x = 68,427,134,928.64/292,687.02
  6. Step 6: Final answer
    x = 233,789.44

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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.