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Finding the Fourth Proportional to 367,431.06, 551,004.88 and 142,761.91

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Solution

The fourth proportional to 367,431.06, 551,004.88 and 142,761.91 is: 214,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,431.06 : 551,004.88 = 142,761.91 : x
  2. Step 2: Convert to fraction form
    367,431.06/551,004.88 = 142,761.91/x
  3. Step 3: Cross multiply
    367,431.06x = 551,004.88 × 142,761.91
  4. Step 4: Simplify right side
    367,431.06x = 78,662,509,088.12
  5. Step 5: Solve for x
    x = 78,662,509,088.12/367,431.06
  6. Step 6: Final answer
    x = 214,087.80

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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.