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Finding the Fourth Proportional to 170,677.90, 256,049.72 and 65,488.67

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Solution

The fourth proportional to 170,677.90, 256,049.72 and 65,488.67 is: 98,245.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,677.90 : 256,049.72 = 65,488.67 : x
  2. Step 2: Convert to fraction form
    170,677.90/256,049.72 = 65,488.67/x
  3. Step 3: Cross multiply
    170,677.90x = 256,049.72 × 65,488.67
  4. Step 4: Simplify right side
    170,677.90x = 16,768,355,616.67
  5. Step 5: Solve for x
    x = 16,768,355,616.67/170,677.90
  6. Step 6: Final answer
    x = 98,245.62

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1.5x scale

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.