Home / 487,101.33-672,117.75-272,243.16

Finding the Fourth Proportional to 487,101.33, 672,117.75 and 272,243.16

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Solution

The fourth proportional to 487,101.33, 672,117.75 and 272,243.16 is: 375,649.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,101.33 : 672,117.75 = 272,243.16 : x
  2. Step 2: Convert to fraction form
    487,101.33/672,117.75 = 272,243.16/x
  3. Step 3: Cross multiply
    487,101.33x = 672,117.75 × 272,243.16
  4. Step 4: Simplify right side
    487,101.33x = 182,979,460,152.09
  5. Step 5: Solve for x
    x = 182,979,460,152.09/487,101.33
  6. Step 6: Final answer
    x = 375,649.68

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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.