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Finding the Fourth Proportional to 288,924.70, 398,713.80 and 161,600.20

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Solution

The fourth proportional to 288,924.70, 398,713.80 and 161,600.20 is: 223,007.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,924.70 : 398,713.80 = 161,600.20 : x
  2. Step 2: Convert to fraction form
    288,924.70/398,713.80 = 161,600.20/x
  3. Step 3: Cross multiply
    288,924.70x = 398,713.80 × 161,600.20
  4. Step 4: Simplify right side
    288,924.70x = 64,432,229,822.76
  5. Step 5: Solve for x
    x = 64,432,229,822.76/288,924.70
  6. Step 6: Final answer
    x = 223,007.00

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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.