Home / 554,193.20-831,376.92-180,128.72

Finding the Fourth Proportional to 554,193.20, 831,376.92 and 180,128.72

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Solution

The fourth proportional to 554,193.20, 831,376.92 and 180,128.72 is: 270,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,193.20 : 831,376.92 = 180,128.72 : x
  2. Step 2: Convert to fraction form
    554,193.20/831,376.92 = 180,128.72/x
  3. Step 3: Cross multiply
    554,193.20x = 831,376.92 × 180,128.72
  4. Step 4: Simplify right side
    554,193.20x = 149,754,860,437.14
  5. Step 5: Solve for x
    x = 149,754,860,437.14/554,193.20
  6. Step 6: Final answer
    x = 270,221.40

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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.