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Finding the Fourth Proportional to 180,392.47, 270,379.57 and 68,000.72

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Solution

The fourth proportional to 180,392.47, 270,379.57 and 68,000.72 is: 101,922.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,392.47 : 270,379.57 = 68,000.72 : x
  2. Step 2: Convert to fraction form
    180,392.47/270,379.57 = 68,000.72/x
  3. Step 3: Cross multiply
    180,392.47x = 270,379.57 × 68,000.72
  4. Step 4: Simplify right side
    180,392.47x = 18,386,004,038.89
  5. Step 5: Solve for x
    x = 18,386,004,038.89/180,392.47
  6. Step 6: Final answer
    x = 101,922.24

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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.