Home / 487,058.81-672,138.95-272,198.75

Finding the Fourth Proportional to 487,058.81, 672,138.95 and 272,198.75

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Solution

The fourth proportional to 487,058.81, 672,138.95 and 272,198.75 is: 375,633.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,058.81 : 672,138.95 = 272,198.75 : x
  2. Step 2: Convert to fraction form
    487,058.81/672,138.95 = 272,198.75/x
  3. Step 3: Cross multiply
    487,058.81x = 672,138.95 × 272,198.75
  4. Step 4: Simplify right side
    487,058.81x = 182,955,377,294.62
  5. Step 5: Solve for x
    x = 182,955,377,294.62/487,058.81
  6. Step 6: Final answer
    x = 375,633.04

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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.