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Finding the Fourth Proportional to 508,083.40, 762,125.42 and 129,032.56

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Solution

The fourth proportional to 508,083.40, 762,125.42 and 129,032.56 is: 193,548.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,083.40 : 762,125.42 = 129,032.56 : x
  2. Step 2: Convert to fraction form
    508,083.40/762,125.42 = 129,032.56/x
  3. Step 3: Cross multiply
    508,083.40x = 762,125.42 × 129,032.56
  4. Step 4: Simplify right side
    508,083.40x = 98,338,990,495.63
  5. Step 5: Solve for x
    x = 98,338,990,495.63/508,083.40
  6. Step 6: Final answer
    x = 193,548.92

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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.