Home / 264,988.20-397,376.70-87,445.80

Finding the Fourth Proportional to 264,988.20, 397,376.70 and 87,445.80

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Solution

The fourth proportional to 264,988.20, 397,376.70 and 87,445.80 is: 131,133.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,988.20 : 397,376.70 = 87,445.80 : x
  2. Step 2: Convert to fraction form
    264,988.20/397,376.70 = 87,445.80/x
  3. Step 3: Cross multiply
    264,988.20x = 397,376.70 × 87,445.80
  4. Step 4: Simplify right side
    264,988.20x = 34,748,923,432.86
  5. Step 5: Solve for x
    x = 34,748,923,432.86/264,988.20
  6. Step 6: Final answer
    x = 131,133.85

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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.