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Finding the Fourth Proportional to 235,401.45, 324,850.16 and 127,974.20

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Solution

The fourth proportional to 235,401.45, 324,850.16 and 127,974.20 is: 176,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,401.45 : 324,850.16 = 127,974.20 : x
  2. Step 2: Convert to fraction form
    235,401.45/324,850.16 = 127,974.20/x
  3. Step 3: Cross multiply
    235,401.45x = 324,850.16 × 127,974.20
  4. Step 4: Simplify right side
    235,401.45x = 41,572,437,081.75
  5. Step 5: Solve for x
    x = 41,572,437,081.75/235,401.45
  6. Step 6: Final answer
    x = 176,602.30

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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.