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Finding the Fourth Proportional to 291,359.16, 402,082.52 and 162,306.32

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Solution

The fourth proportional to 291,359.16, 402,082.52 and 162,306.32 is: 223,986.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,359.16 : 402,082.52 = 162,306.32 : x
  2. Step 2: Convert to fraction form
    291,359.16/402,082.52 = 162,306.32/x
  3. Step 3: Cross multiply
    291,359.16x = 402,082.52 × 162,306.32
  4. Step 4: Simplify right side
    291,359.16x = 65,260,531,335.58
  5. Step 5: Solve for x
    x = 65,260,531,335.58/291,359.16
  6. Step 6: Final answer
    x = 223,986.54

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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.