Home / 487,014.22-672,067.09-272,156.05

Finding the Fourth Proportional to 487,014.22, 672,067.09 and 272,156.05

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Solution

The fourth proportional to 487,014.22, 672,067.09 and 272,156.05 is: 375,568.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,014.22 : 672,067.09 = 272,156.05 : x
  2. Step 2: Convert to fraction form
    487,014.22/672,067.09 = 272,156.05/x
  3. Step 3: Cross multiply
    487,014.22x = 672,067.09 × 272,156.05
  4. Step 4: Simplify right side
    487,014.22x = 182,907,124,549.39
  5. Step 5: Solve for x
    x = 182,907,124,549.39/487,014.22
  6. Step 6: Final answer
    x = 375,568.34

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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.