Home / 288,226.20-397,711.02-160,899

Finding the Fourth Proportional to 288,226.20, 397,711.02 and 160,899

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Solution

The fourth proportional to 288,226.20, 397,711.02 and 160,899 is: 222,017.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,226.20 : 397,711.02 = 160,899 : x
  2. Step 2: Convert to fraction form
    288,226.20/397,711.02 = 160,899/x
  3. Step 3: Cross multiply
    288,226.20x = 397,711.02 × 160,899
  4. Step 4: Simplify right side
    288,226.20x = 63,991,305,406.98
  5. Step 5: Solve for x
    x = 63,991,305,406.98/288,226.20
  6. Step 6: Final answer
    x = 222,017.66

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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.