Home / 353,270.28-487,305.45-222,239.57

Finding the Fourth Proportional to 353,270.28, 487,305.45 and 222,239.57

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Solution

The fourth proportional to 353,270.28, 487,305.45 and 222,239.57 is: 306,560.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,270.28 : 487,305.45 = 222,239.57 : x
  2. Step 2: Convert to fraction form
    353,270.28/487,305.45 = 222,239.57/x
  3. Step 3: Cross multiply
    353,270.28x = 487,305.45 × 222,239.57
  4. Step 4: Simplify right side
    353,270.28x = 108,298,553,666.66
  5. Step 5: Solve for x
    x = 108,298,553,666.66/353,270.28
  6. Step 6: Final answer
    x = 306,560.05

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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.