Home / 372,839.48-514,531.32-211,689.20

Finding the Fourth Proportional to 372,839.48, 514,531.32 and 211,689.20

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Solution

The fourth proportional to 372,839.48, 514,531.32 and 211,689.20 is: 292,138.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,839.48 : 514,531.32 = 211,689.20 : x
  2. Step 2: Convert to fraction form
    372,839.48/514,531.32 = 211,689.20/x
  3. Step 3: Cross multiply
    372,839.48x = 514,531.32 × 211,689.20
  4. Step 4: Simplify right side
    372,839.48x = 108,920,723,505.74
  5. Step 5: Solve for x
    x = 108,920,723,505.74/372,839.48
  6. Step 6: Final answer
    x = 292,138.38

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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.