Home / 203,296.20-280,545.03-112,650.18

Finding the Fourth Proportional to 203,296.20, 280,545.03 and 112,650.18

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Solution

The fourth proportional to 203,296.20, 280,545.03 and 112,650.18 is: 155,455.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,296.20 : 280,545.03 = 112,650.18 : x
  2. Step 2: Convert to fraction form
    203,296.20/280,545.03 = 112,650.18/x
  3. Step 3: Cross multiply
    203,296.20x = 280,545.03 × 112,650.18
  4. Step 4: Simplify right side
    203,296.20x = 31,603,448,127.61
  5. Step 5: Solve for x
    x = 31,603,448,127.61/203,296.20
  6. Step 6: Final answer
    x = 155,455.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.