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Finding the Fourth Proportional to 255,398.87, 352,452.80 and 140,677.93

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Solution

The fourth proportional to 255,398.87, 352,452.80 and 140,677.93 is: 194,136.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,398.87 : 352,452.80 = 140,677.93 : x
  2. Step 2: Convert to fraction form
    255,398.87/352,452.80 = 140,677.93/x
  3. Step 3: Cross multiply
    255,398.87x = 352,452.80 × 140,677.93
  4. Step 4: Simplify right side
    255,398.87x = 49,582,331,118.96
  5. Step 5: Solve for x
    x = 49,582,331,118.96/255,398.87
  6. Step 6: Final answer
    x = 194,136.84

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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.