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Finding the Fourth Proportional to 310,851.89, 466,277.80 and 86,212.32

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Solution

The fourth proportional to 310,851.89, 466,277.80 and 86,212.32 is: 129,318.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,851.89 : 466,277.80 = 86,212.32 : x
  2. Step 2: Convert to fraction form
    310,851.89/466,277.80 = 86,212.32/x
  3. Step 3: Cross multiply
    310,851.89x = 466,277.80 × 86,212.32
  4. Step 4: Simplify right side
    310,851.89x = 40,198,890,686.97
  5. Step 5: Solve for x
    x = 40,198,890,686.97/310,851.89
  6. Step 6: Final answer
    x = 129,318.47

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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.