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Finding the Fourth Proportional to 557,449.90, 836,502.90 and 202,499.80

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Solution

The fourth proportional to 557,449.90, 836,502.90 and 202,499.80 is: 303,868.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,449.90 : 836,502.90 = 202,499.80 : x
  2. Step 2: Convert to fraction form
    557,449.90/836,502.90 = 202,499.80/x
  3. Step 3: Cross multiply
    557,449.90x = 836,502.90 × 202,499.80
  4. Step 4: Simplify right side
    557,449.90x = 169,391,669,949.42
  5. Step 5: Solve for x
    x = 169,391,669,949.42/557,449.90
  6. Step 6: Final answer
    x = 303,868.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.