Home / 353,228.84-487,436.10-202,335.56

Finding the Fourth Proportional to 353,228.84, 487,436.10 and 202,335.56

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Solution

The fourth proportional to 353,228.84, 487,436.10 and 202,335.56 is: 279,211.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,228.84 : 487,436.10 = 202,335.56 : x
  2. Step 2: Convert to fraction form
    353,228.84/487,436.10 = 202,335.56/x
  3. Step 3: Cross multiply
    353,228.84x = 487,436.10 × 202,335.56
  4. Step 4: Simplify right side
    353,228.84x = 98,625,656,257.72
  5. Step 5: Solve for x
    x = 98,625,656,257.72/353,228.84
  6. Step 6: Final answer
    x = 279,211.79

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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.