Home / 353,297.30-487,563.10-202,423.46

Finding the Fourth Proportional to 353,297.30, 487,563.10 and 202,423.46

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Solution

The fourth proportional to 353,297.30, 487,563.10 and 202,423.46 is: 279,351.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,297.30 : 487,563.10 = 202,423.46 : x
  2. Step 2: Convert to fraction form
    353,297.30/487,563.10 = 202,423.46/x
  3. Step 3: Cross multiply
    353,297.30x = 487,563.10 × 202,423.46
  4. Step 4: Simplify right side
    353,297.30x = 98,694,206,726.45
  5. Step 5: Solve for x
    x = 98,694,206,726.45/353,297.30
  6. Step 6: Final answer
    x = 279,351.72

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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.