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Finding the Fourth Proportional to 317,359.96, 476,043.02 and 80,702.64

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Solution

The fourth proportional to 317,359.96, 476,043.02 and 80,702.64 is: 121,054.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,359.96 : 476,043.02 = 80,702.64 : x
  2. Step 2: Convert to fraction form
    317,359.96/476,043.02 = 80,702.64/x
  3. Step 3: Cross multiply
    317,359.96x = 476,043.02 × 80,702.64
  4. Step 4: Simplify right side
    317,359.96x = 38,417,928,467.57
  5. Step 5: Solve for x
    x = 38,417,928,467.57/317,359.96
  6. Step 6: Final answer
    x = 121,054.74

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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.