Home / 487,043.48-672,149.85-272,200.70

Finding the Fourth Proportional to 487,043.48, 672,149.85 and 272,200.70

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Solution

The fourth proportional to 487,043.48, 672,149.85 and 272,200.70 is: 375,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,043.48 : 672,149.85 = 272,200.70 : x
  2. Step 2: Convert to fraction form
    487,043.48/672,149.85 = 272,200.70/x
  3. Step 3: Cross multiply
    487,043.48x = 672,149.85 × 272,200.70
  4. Step 4: Simplify right side
    487,043.48x = 182,959,660,334.52
  5. Step 5: Solve for x
    x = 182,959,660,334.52/487,043.48
  6. Step 6: Final answer
    x = 375,653.65

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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.