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Finding the Fourth Proportional to 578,875.07, 868,233.78 and 152,375.20

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Solution

The fourth proportional to 578,875.07, 868,233.78 and 152,375.20 is: 228,542.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,875.07 : 868,233.78 = 152,375.20 : x
  2. Step 2: Convert to fraction form
    578,875.07/868,233.78 = 152,375.20/x
  3. Step 3: Cross multiply
    578,875.07x = 868,233.78 × 152,375.20
  4. Step 4: Simplify right side
    578,875.07x = 132,297,293,703.67
  5. Step 5: Solve for x
    x = 132,297,293,703.67/578,875.07
  6. Step 6: Final answer
    x = 228,542.05

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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.