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Finding the Fourth Proportional to 317,988.45, 476,686.22 and 107,479.17

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Solution

The fourth proportional to 317,988.45, 476,686.22 and 107,479.17 is: 161,118.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,988.45 : 476,686.22 = 107,479.17 : x
  2. Step 2: Convert to fraction form
    317,988.45/476,686.22 = 107,479.17/x
  3. Step 3: Cross multiply
    317,988.45x = 476,686.22 × 107,479.17
  4. Step 4: Simplify right side
    317,988.45x = 51,233,838,738.64
  5. Step 5: Solve for x
    x = 51,233,838,738.64/317,988.45
  6. Step 6: Final answer
    x = 161,118.55

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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.