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Finding the Fourth Proportional to 288,574.59, 398,026.33 and 202,552.80

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Solution

The fourth proportional to 288,574.59, 398,026.33 and 202,552.80 is: 279,377.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,574.59 : 398,026.33 = 202,552.80 : x
  2. Step 2: Convert to fraction form
    288,574.59/398,026.33 = 202,552.80/x
  3. Step 3: Cross multiply
    288,574.59x = 398,026.33 × 202,552.80
  4. Step 4: Simplify right side
    288,574.59x = 80,621,347,615.22
  5. Step 5: Solve for x
    x = 80,621,347,615.22/288,574.59
  6. Step 6: Final answer
    x = 279,377.85

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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.