Home / 287,890.50-431,650.96-119,527.04

Finding the Fourth Proportional to 287,890.50, 431,650.96 and 119,527.04

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Solution

The fourth proportional to 287,890.50, 431,650.96 and 119,527.04 is: 179,213.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,890.50 : 431,650.96 = 119,527.04 : x
  2. Step 2: Convert to fraction form
    287,890.50/431,650.96 = 119,527.04/x
  3. Step 3: Cross multiply
    287,890.50x = 431,650.96 × 119,527.04
  4. Step 4: Simplify right side
    287,890.50x = 51,593,962,342.27
  5. Step 5: Solve for x
    x = 51,593,962,342.27/287,890.50
  6. Step 6: Final answer
    x = 179,213.84

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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.