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Finding the Fourth Proportional to 252,364.77, 378,488.79 and 74,828.97

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Solution

The fourth proportional to 252,364.77, 378,488.79 and 74,828.97 is: 112,226.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,364.77 : 378,488.79 = 74,828.97 : x
  2. Step 2: Convert to fraction form
    252,364.77/378,488.79 = 74,828.97/x
  3. Step 3: Cross multiply
    252,364.77x = 378,488.79 × 74,828.97
  4. Step 4: Simplify right side
    252,364.77x = 28,321,926,312.25
  5. Step 5: Solve for x
    x = 28,321,926,312.25/252,364.77
  6. Step 6: Final answer
    x = 112,226.15

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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.