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Finding the Fourth Proportional to 317,933.40, 476,898.22 and 81,275.72

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Solution

The fourth proportional to 317,933.40, 476,898.22 and 81,275.72 is: 121,913.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,933.40 : 476,898.22 = 81,275.72 : x
  2. Step 2: Convert to fraction form
    317,933.40/476,898.22 = 81,275.72/x
  3. Step 3: Cross multiply
    317,933.40x = 476,898.22 × 81,275.72
  4. Step 4: Simplify right side
    317,933.40x = 38,760,246,197.22
  5. Step 5: Solve for x
    x = 38,760,246,197.22/317,933.40
  6. Step 6: Final answer
    x = 121,913.10

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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.