Home / 288,040.81-397,466.17-158,976.90

Finding the Fourth Proportional to 288,040.81, 397,466.17 and 158,976.90

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Solution

The fourth proportional to 288,040.81, 397,466.17 and 158,976.90 is: 219,371.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,040.81 : 397,466.17 = 158,976.90 : x
  2. Step 2: Convert to fraction form
    288,040.81/397,466.17 = 158,976.90/x
  3. Step 3: Cross multiply
    288,040.81x = 397,466.17 × 158,976.90
  4. Step 4: Simplify right side
    288,040.81x = 63,187,939,164.03
  5. Step 5: Solve for x
    x = 63,187,939,164.03/288,040.81
  6. Step 6: Final answer
    x = 219,371.48

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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.