Home / 203,265.13-280,603.38-142,887.53

Finding the Fourth Proportional to 203,265.13, 280,603.38 and 142,887.53

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Solution

The fourth proportional to 203,265.13, 280,603.38 and 142,887.53 is: 197,253.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,265.13 : 280,603.38 = 142,887.53 : x
  2. Step 2: Convert to fraction form
    203,265.13/280,603.38 = 142,887.53/x
  3. Step 3: Cross multiply
    203,265.13x = 280,603.38 × 142,887.53
  4. Step 4: Simplify right side
    203,265.13x = 40,094,722,474.83
  5. Step 5: Solve for x
    x = 40,094,722,474.83/203,265.13
  6. Step 6: Final answer
    x = 197,253.33

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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.