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Finding the Fourth Proportional to 323,155.88, 484,515.12 and 112,679

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Solution

The fourth proportional to 323,155.88, 484,515.12 and 112,679 is: 168,942.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,155.88 : 484,515.12 = 112,679 : x
  2. Step 2: Convert to fraction form
    323,155.88/484,515.12 = 112,679/x
  3. Step 3: Cross multiply
    323,155.88x = 484,515.12 × 112,679
  4. Step 4: Simplify right side
    323,155.88x = 54,594,679,206.48
  5. Step 5: Solve for x
    x = 54,594,679,206.48/323,155.88
  6. Step 6: Final answer
    x = 168,942.24

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1.5x scale

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.