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Finding the Fourth Proportional to 235,142.64, 324,500.72 and 127,712.75

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Solution

The fourth proportional to 235,142.64, 324,500.72 and 127,712.75 is: 176,245.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,142.64 : 324,500.72 = 127,712.75 : x
  2. Step 2: Convert to fraction form
    235,142.64/324,500.72 = 127,712.75/x
  3. Step 3: Cross multiply
    235,142.64x = 324,500.72 × 127,712.75
  4. Step 4: Simplify right side
    235,142.64x = 41,442,879,328.18
  5. Step 5: Solve for x
    x = 41,442,879,328.18/235,142.64
  6. Step 6: Final answer
    x = 176,245.70

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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.