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Finding the Fourth Proportional to 310,070.89, 427,892.38 and 174,105.91

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Solution

The fourth proportional to 310,070.89, 427,892.38 and 174,105.91 is: 240,263.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,070.89 : 427,892.38 = 174,105.91 : x
  2. Step 2: Convert to fraction form
    310,070.89/427,892.38 = 174,105.91/x
  3. Step 3: Cross multiply
    310,070.89x = 427,892.38 × 174,105.91
  4. Step 4: Simplify right side
    310,070.89x = 74,498,592,201.97
  5. Step 5: Solve for x
    x = 74,498,592,201.97/310,070.89
  6. Step 6: Final answer
    x = 240,263.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.