Home / 296,960.10-445,435.55-72,320.16

Finding the Fourth Proportional to 296,960.10, 445,435.55 and 72,320.16

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Solution

The fourth proportional to 296,960.10, 445,435.55 and 72,320.16 is: 108,479.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,960.10 : 445,435.55 = 72,320.16 : x
  2. Step 2: Convert to fraction form
    296,960.10/445,435.55 = 72,320.16/x
  3. Step 3: Cross multiply
    296,960.10x = 445,435.55 × 72,320.16
  4. Step 4: Simplify right side
    296,960.10x = 32,213,970,245.69
  5. Step 5: Solve for x
    x = 32,213,970,245.69/296,960.10
  6. Step 6: Final answer
    x = 108,479.12

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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.