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Finding the Fourth Proportional to 381,999.84, 573,248.52 and 145,344.48

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Solution

The fourth proportional to 381,999.84, 573,248.52 and 145,344.48 is: 218,111.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,999.84 : 573,248.52 = 145,344.48 : x
  2. Step 2: Convert to fraction form
    381,999.84/573,248.52 = 145,344.48/x
  3. Step 3: Cross multiply
    381,999.84x = 573,248.52 × 145,344.48
  4. Step 4: Simplify right side
    381,999.84x = 83,318,508,050.17
  5. Step 5: Solve for x
    x = 83,318,508,050.17/381,999.84
  6. Step 6: Final answer
    x = 218,111.37

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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.