Home / 353,370.98-487,832.61-272,617.22

Finding the Fourth Proportional to 353,370.98, 487,832.61 and 272,617.22

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Solution

The fourth proportional to 353,370.98, 487,832.61 and 272,617.22 is: 376,351.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,370.98 : 487,832.61 = 272,617.22 : x
  2. Step 2: Convert to fraction form
    353,370.98/487,832.61 = 272,617.22/x
  3. Step 3: Cross multiply
    353,370.98x = 487,832.61 × 272,617.22
  4. Step 4: Simplify right side
    353,370.98x = 132,991,569,963.54
  5. Step 5: Solve for x
    x = 132,991,569,963.54/353,370.98
  6. Step 6: Final answer
    x = 376,351.14

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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.