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Finding the Fourth Proportional to 460,302.50, 690,462.40 and 127,887.14

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Solution

The fourth proportional to 460,302.50, 690,462.40 and 127,887.14 is: 191,833.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,302.50 : 690,462.40 = 127,887.14 : x
  2. Step 2: Convert to fraction form
    460,302.50/690,462.40 = 127,887.14/x
  3. Step 3: Cross multiply
    460,302.50x = 690,462.40 × 127,887.14
  4. Step 4: Simplify right side
    460,302.50x = 88,301,261,613.54
  5. Step 5: Solve for x
    x = 88,301,261,613.54/460,302.50
  6. Step 6: Final answer
    x = 191,833.11

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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.