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Finding the Fourth Proportional to 317,291.78, 476,343.48 and 272,599.13

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Solution

The fourth proportional to 317,291.78, 476,343.48 and 272,599.13 is: 409,247.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,291.78 : 476,343.48 = 272,599.13 : x
  2. Step 2: Convert to fraction form
    317,291.78/476,343.48 = 272,599.13/x
  3. Step 3: Cross multiply
    317,291.78x = 476,343.48 × 272,599.13
  4. Step 4: Simplify right side
    317,291.78x = 129,850,815,847.46
  5. Step 5: Solve for x
    x = 129,850,815,847.46/317,291.78
  6. Step 6: Final answer
    x = 409,247.34

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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.