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Finding the Fourth Proportional to 252,412.70, 378,537.08 and 83,887.74

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Solution

The fourth proportional to 252,412.70, 378,537.08 and 83,887.74 is: 125,804.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,412.70 : 378,537.08 = 83,887.74 : x
  2. Step 2: Convert to fraction form
    252,412.70/378,537.08 = 83,887.74/x
  3. Step 3: Cross multiply
    252,412.70x = 378,537.08 × 83,887.74
  4. Step 4: Simplify right side
    252,412.70x = 31,754,619,727.96
  5. Step 5: Solve for x
    x = 31,754,619,727.96/252,412.70
  6. Step 6: Final answer
    x = 125,804.37

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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.