Home / 288,914.85-433,418.45-89,188.29

Finding the Fourth Proportional to 288,914.85, 433,418.45 and 89,188.29

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Solution

The fourth proportional to 288,914.85, 433,418.45 and 89,188.29 is: 133,796.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,914.85 : 433,418.45 = 89,188.29 : x
  2. Step 2: Convert to fraction form
    288,914.85/433,418.45 = 89,188.29/x
  3. Step 3: Cross multiply
    288,914.85x = 433,418.45 × 89,188.29
  4. Step 4: Simplify right side
    288,914.85x = 38,655,849,964.01
  5. Step 5: Solve for x
    x = 38,655,849,964.01/288,914.85
  6. Step 6: Final answer
    x = 133,796.69

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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.