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Finding the Fourth Proportional to 219,955.59, 303,545.44 and 129,294.92

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Solution

The fourth proportional to 219,955.59, 303,545.44 and 129,294.92 is: 178,430.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,955.59 : 303,545.44 = 129,294.92 : x
  2. Step 2: Convert to fraction form
    219,955.59/303,545.44 = 129,294.92/x
  3. Step 3: Cross multiply
    219,955.59x = 303,545.44 × 129,294.92
  4. Step 4: Simplify right side
    219,955.59x = 39,246,883,381.16
  5. Step 5: Solve for x
    x = 39,246,883,381.16/219,955.59
  6. Step 6: Final answer
    x = 178,430.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.