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Finding the Fourth Proportional to 156,404, 234,460.24 and 61,685.60

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Solution

The fourth proportional to 156,404, 234,460.24 and 61,685.60 is: 92,470.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,404 : 234,460.24 = 61,685.60 : x
  2. Step 2: Convert to fraction form
    156,404/234,460.24 = 61,685.60/x
  3. Step 3: Cross multiply
    156,404x = 234,460.24 × 61,685.60
  4. Step 4: Simplify right side
    156,404x = 14,462,820,580.54
  5. Step 5: Solve for x
    x = 14,462,820,580.54/156,404
  6. Step 6: Final answer
    x = 92,470.91

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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.