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Finding the Fourth Proportional to 212,247.36, 318,440.16 and 101,448

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Solution

The fourth proportional to 212,247.36, 318,440.16 and 101,448 is: 152,205.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,247.36 : 318,440.16 = 101,448 : x
  2. Step 2: Convert to fraction form
    212,247.36/318,440.16 = 101,448/x
  3. Step 3: Cross multiply
    212,247.36x = 318,440.16 × 101,448
  4. Step 4: Simplify right side
    212,247.36x = 32,305,117,351.68
  5. Step 5: Solve for x
    x = 32,305,117,351.68/212,247.36
  6. Step 6: Final answer
    x = 152,205.04

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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.