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Finding the Fourth Proportional to 317,478.42, 476,228.61 and 159,620.82

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Solution

The fourth proportional to 317,478.42, 476,228.61 and 159,620.82 is: 239,436.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,478.42 : 476,228.61 = 159,620.82 : x
  2. Step 2: Convert to fraction form
    317,478.42/476,228.61 = 159,620.82/x
  3. Step 3: Cross multiply
    317,478.42x = 476,228.61 × 159,620.82
  4. Step 4: Simplify right side
    317,478.42x = 76,016,001,235.66
  5. Step 5: Solve for x
    x = 76,016,001,235.66/317,478.42
  6. Step 6: Final answer
    x = 239,436.75

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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.