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Finding the Fourth Proportional to 366,981.30, 550,342.35 and 130,331.70

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Solution

The fourth proportional to 366,981.30, 550,342.35 and 130,331.70 is: 195,451.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,981.30 : 550,342.35 = 130,331.70 : x
  2. Step 2: Convert to fraction form
    366,981.30/550,342.35 = 130,331.70/x
  3. Step 3: Cross multiply
    366,981.30x = 550,342.35 × 130,331.70
  4. Step 4: Simplify right side
    366,981.30x = 71,727,054,057.50
  5. Step 5: Solve for x
    x = 71,727,054,057.50/366,981.30
  6. Step 6: Final answer
    x = 195,451.52

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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.