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Finding the Fourth Proportional to 288,857.62, 398,616.08 and 159,792.74

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Solution

The fourth proportional to 288,857.62, 398,616.08 and 159,792.74 is: 220,509.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,857.62 : 398,616.08 = 159,792.74 : x
  2. Step 2: Convert to fraction form
    288,857.62/398,616.08 = 159,792.74/x
  3. Step 3: Cross multiply
    288,857.62x = 398,616.08 × 159,792.74
  4. Step 4: Simplify right side
    288,857.62x = 63,695,955,631.26
  5. Step 5: Solve for x
    x = 63,695,955,631.26/288,857.62
  6. Step 6: Final answer
    x = 220,509.87

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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.