Home / 348,542.80-522,887.10-111,909.40

Finding the Fourth Proportional to 348,542.80, 522,887.10 and 111,909.40

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Solution

The fourth proportional to 348,542.80, 522,887.10 and 111,909.40 is: 167,887.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,542.80 : 522,887.10 = 111,909.40 : x
  2. Step 2: Convert to fraction form
    348,542.80/522,887.10 = 111,909.40/x
  3. Step 3: Cross multiply
    348,542.80x = 522,887.10 × 111,909.40
  4. Step 4: Simplify right side
    348,542.80x = 58,515,981,628.74
  5. Step 5: Solve for x
    x = 58,515,981,628.74/348,542.80
  6. Step 6: Final answer
    x = 167,887.51

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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.