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Finding the Fourth Proportional to 288,747.52, 398,474.23 and 159,679.32

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Solution

The fourth proportional to 288,747.52, 398,474.23 and 159,679.32 is: 220,358.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,747.52 : 398,474.23 = 159,679.32 : x
  2. Step 2: Convert to fraction form
    288,747.52/398,474.23 = 159,679.32/x
  3. Step 3: Cross multiply
    288,747.52x = 398,474.23 × 159,679.32
  4. Step 4: Simplify right side
    288,747.52x = 63,628,094,431.86
  5. Step 5: Solve for x
    x = 63,628,094,431.86/288,747.52
  6. Step 6: Final answer
    x = 220,358.93

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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.