Home / 288,530.04-398,282.55-258,261.96

Finding the Fourth Proportional to 288,530.04, 398,282.55 and 258,261.96

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Solution

The fourth proportional to 288,530.04, 398,282.55 and 258,261.96 is: 356,500.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,530.04 : 398,282.55 = 258,261.96 : x
  2. Step 2: Convert to fraction form
    288,530.04/398,282.55 = 258,261.96/x
  3. Step 3: Cross multiply
    288,530.04x = 398,282.55 × 258,261.96
  4. Step 4: Simplify right side
    288,530.04x = 102,861,231,996.80
  5. Step 5: Solve for x
    x = 102,861,231,996.80/288,530.04
  6. Step 6: Final answer
    x = 356,500.95

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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.