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Finding the Fourth Proportional to 382,368.40, 573,217.25 and 145,553.56

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Solution

The fourth proportional to 382,368.40, 573,217.25 and 145,553.56 is: 218,202.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,368.40 : 573,217.25 = 145,553.56 : x
  2. Step 2: Convert to fraction form
    382,368.40/573,217.25 = 145,553.56/x
  3. Step 3: Cross multiply
    382,368.40x = 573,217.25 × 145,553.56
  4. Step 4: Simplify right side
    382,368.40x = 83,433,811,390.91
  5. Step 5: Solve for x
    x = 83,433,811,390.91/382,368.40
  6. Step 6: Final answer
    x = 218,202.68

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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.