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Finding the Fourth Proportional to 482,853.80, 724,277.10 and 145,893.80

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Solution

The fourth proportional to 482,853.80, 724,277.10 and 145,893.80 is: 218,839.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,853.80 : 724,277.10 = 145,893.80 : x
  2. Step 2: Convert to fraction form
    482,853.80/724,277.10 = 145,893.80/x
  3. Step 3: Cross multiply
    482,853.80x = 724,277.10 × 145,893.80
  4. Step 4: Simplify right side
    482,853.80x = 105,667,538,371.98
  5. Step 5: Solve for x
    x = 105,667,538,371.98/482,853.80
  6. Step 6: Final answer
    x = 218,839.61

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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.