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Finding the Fourth Proportional to 212,527.92, 316,282.92 and 205,440.96

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Solution

The fourth proportional to 212,527.92, 316,282.92 and 205,440.96 is: 305,736.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,527.92 : 316,282.92 = 205,440.96 : x
  2. Step 2: Convert to fraction form
    212,527.92/316,282.92 = 205,440.96/x
  3. Step 3: Cross multiply
    212,527.92x = 316,282.92 × 205,440.96
  4. Step 4: Simplify right side
    212,527.92x = 64,977,466,716.40
  5. Step 5: Solve for x
    x = 64,977,466,716.40/212,527.92
  6. Step 6: Final answer
    x = 305,736.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.