Home / 288,197.19-397,711.72-160,872.78

Finding the Fourth Proportional to 288,197.19, 397,711.72 and 160,872.78

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Solution

The fourth proportional to 288,197.19, 397,711.72 and 160,872.78 is: 222,004.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,197.19 : 397,711.72 = 160,872.78 : x
  2. Step 2: Convert to fraction form
    288,197.19/397,711.72 = 160,872.78/x
  3. Step 3: Cross multiply
    288,197.19x = 397,711.72 × 160,872.78
  4. Step 4: Simplify right side
    288,197.19x = 63,980,991,727.49
  5. Step 5: Solve for x
    x = 63,980,991,727.49/288,197.19
  6. Step 6: Final answer
    x = 222,004.22

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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.