Home / 317,139.12-437,881.60-204,158.72

Finding the Fourth Proportional to 317,139.12, 437,881.60 and 204,158.72

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Solution

The fourth proportional to 317,139.12, 437,881.60 and 204,158.72 is: 281,886.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,139.12 : 437,881.60 = 204,158.72 : x
  2. Step 2: Convert to fraction form
    317,139.12/437,881.60 = 204,158.72/x
  3. Step 3: Cross multiply
    317,139.12x = 437,881.60 × 204,158.72
  4. Step 4: Simplify right side
    317,139.12x = 89,397,346,967.55
  5. Step 5: Solve for x
    x = 89,397,346,967.55/317,139.12
  6. Step 6: Final answer
    x = 281,886.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.