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Finding the Fourth Proportional to 315,047.46, 434,766.22 and 179,082.30

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Solution

The fourth proportional to 315,047.46, 434,766.22 and 179,082.30 is: 247,133.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,047.46 : 434,766.22 = 179,082.30 : x
  2. Step 2: Convert to fraction form
    315,047.46/434,766.22 = 179,082.30/x
  3. Step 3: Cross multiply
    315,047.46x = 434,766.22 × 179,082.30
  4. Step 4: Simplify right side
    315,047.46x = 77,858,934,639.91
  5. Step 5: Solve for x
    x = 77,858,934,639.91/315,047.46
  6. Step 6: Final answer
    x = 247,133.99

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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.