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Finding the Fourth Proportional to 310,953.01, 466,432.13 and 86,330.96

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Solution

The fourth proportional to 310,953.01, 466,432.13 and 86,330.96 is: 129,497.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,953.01 : 466,432.13 = 86,330.96 : x
  2. Step 2: Convert to fraction form
    310,953.01/466,432.13 = 86,330.96/x
  3. Step 3: Cross multiply
    310,953.01x = 466,432.13 × 86,330.96
  4. Step 4: Simplify right side
    310,953.01x = 40,267,532,543.05
  5. Step 5: Solve for x
    x = 40,267,532,543.05/310,953.01
  6. Step 6: Final answer
    x = 129,497.16

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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.