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Finding the Fourth Proportional to 317,115, 437,657.58 and 182,979

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Solution

The fourth proportional to 317,115, 437,657.58 and 182,979 is: 252,533.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,115 : 437,657.58 = 182,979 : x
  2. Step 2: Convert to fraction form
    317,115/437,657.58 = 182,979/x
  3. Step 3: Cross multiply
    317,115x = 437,657.58 × 182,979
  4. Step 4: Simplify right side
    317,115x = 80,082,146,330.82
  5. Step 5: Solve for x
    x = 80,082,146,330.82/317,115
  6. Step 6: Final answer
    x = 252,533.45

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1.5x scale

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.