Home / 487,048.03-672,156.12-272,205.25

Finding the Fourth Proportional to 487,048.03, 672,156.12 and 272,205.25

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Solution

The fourth proportional to 487,048.03, 672,156.12 and 272,205.25 is: 375,659.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,048.03 : 672,156.12 = 272,205.25 : x
  2. Step 2: Convert to fraction form
    487,048.03/672,156.12 = 272,205.25/x
  3. Step 3: Cross multiply
    487,048.03x = 672,156.12 × 272,205.25
  4. Step 4: Simplify right side
    487,048.03x = 182,964,424,683.63
  5. Step 5: Solve for x
    x = 182,964,424,683.63/487,048.03
  6. Step 6: Final answer
    x = 375,659.92

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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.