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Finding the Fourth Proportional to 255,603.54, 352,753.14 and 140,902.56

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Solution

The fourth proportional to 255,603.54, 352,753.14 and 140,902.56 is: 194,456.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,603.54 : 352,753.14 = 140,902.56 : x
  2. Step 2: Convert to fraction form
    255,603.54/352,753.14 = 140,902.56/x
  3. Step 3: Cross multiply
    255,603.54x = 352,753.14 × 140,902.56
  4. Step 4: Simplify right side
    255,603.54x = 49,703,820,474.04
  5. Step 5: Solve for x
    x = 49,703,820,474.04/255,603.54
  6. Step 6: Final answer
    x = 194,456.70

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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.