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Finding the Fourth Proportional to 252,136.59, 378,314.84 and 83,679.27

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Solution

The fourth proportional to 252,136.59, 378,314.84 and 83,679.27 is: 125,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,136.59 : 378,314.84 = 83,679.27 : x
  2. Step 2: Convert to fraction form
    252,136.59/378,314.84 = 83,679.27/x
  3. Step 3: Cross multiply
    252,136.59x = 378,314.84 × 83,679.27
  4. Step 4: Simplify right side
    252,136.59x = 31,657,109,641.37
  5. Step 5: Solve for x
    x = 31,657,109,641.37/252,136.59
  6. Step 6: Final answer
    x = 125,555.40

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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.