Home / 353,144.48-487,349.60-215,331.52

Finding the Fourth Proportional to 353,144.48, 487,349.60 and 215,331.52

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Solution

The fourth proportional to 353,144.48, 487,349.60 and 215,331.52 is: 297,163.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,144.48 : 487,349.60 = 215,331.52 : x
  2. Step 2: Convert to fraction form
    353,144.48/487,349.60 = 215,331.52/x
  3. Step 3: Cross multiply
    353,144.48x = 487,349.60 × 215,331.52
  4. Step 4: Simplify right side
    353,144.48x = 104,941,730,139.39
  5. Step 5: Solve for x
    x = 104,941,730,139.39/353,144.48
  6. Step 6: Final answer
    x = 297,163.73

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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.