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Finding the Fourth Proportional to 252,277.64, 378,417.96 and 74,786.16

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Solution

The fourth proportional to 252,277.64, 378,417.96 and 74,786.16 is: 112,179.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,277.64 : 378,417.96 = 74,786.16 : x
  2. Step 2: Convert to fraction form
    252,277.64/378,417.96 = 74,786.16/x
  3. Step 3: Cross multiply
    252,277.64x = 378,417.96 × 74,786.16
  4. Step 4: Simplify right side
    252,277.64x = 28,300,426,103.43
  5. Step 5: Solve for x
    x = 28,300,426,103.43/252,277.64
  6. Step 6: Final answer
    x = 112,179.68

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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.