Home / 278,515.04-384,450.60-165,337.88

Finding the Fourth Proportional to 278,515.04, 384,450.60 and 165,337.88

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Solution

The fourth proportional to 278,515.04, 384,450.60 and 165,337.88 is: 228,225.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,515.04 : 384,450.60 = 165,337.88 : x
  2. Step 2: Convert to fraction form
    278,515.04/384,450.60 = 165,337.88/x
  3. Step 3: Cross multiply
    278,515.04x = 384,450.60 × 165,337.88
  4. Step 4: Simplify right side
    278,515.04x = 63,564,247,168.73
  5. Step 5: Solve for x
    x = 63,564,247,168.73/278,515.04
  6. Step 6: Final answer
    x = 228,225.55

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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.