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Finding the Fourth Proportional to 554,347.20, 831,520.80 and 180,370.20

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Solution

The fourth proportional to 554,347.20, 831,520.80 and 180,370.20 is: 270,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,347.20 : 831,520.80 = 180,370.20 : x
  2. Step 2: Convert to fraction form
    554,347.20/831,520.80 = 180,370.20/x
  3. Step 3: Cross multiply
    554,347.20x = 831,520.80 × 180,370.20
  4. Step 4: Simplify right side
    554,347.20x = 149,981,573,000.16
  5. Step 5: Solve for x
    x = 149,981,573,000.16/554,347.20
  6. Step 6: Final answer
    x = 270,555.30

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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.