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Finding the Fourth Proportional to 310,913.66, 466,318.33 and 86,296.92

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Solution

The fourth proportional to 310,913.66, 466,318.33 and 86,296.92 is: 129,430.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,913.66 : 466,318.33 = 86,296.92 : x
  2. Step 2: Convert to fraction form
    310,913.66/466,318.33 = 86,296.92/x
  3. Step 3: Cross multiply
    310,913.66x = 466,318.33 × 86,296.92
  4. Step 4: Simplify right side
    310,913.66x = 40,241,835,402.80
  5. Step 5: Solve for x
    x = 40,241,835,402.80/310,913.66
  6. Step 6: Final answer
    x = 129,430.90

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1.5x scale

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.