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Finding the Fourth Proportional to 253,441.92, 349,712.20 and 153,934.75

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Solution

The fourth proportional to 253,441.92, 349,712.20 and 153,934.75 is: 212,407.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,441.92 : 349,712.20 = 153,934.75 : x
  2. Step 2: Convert to fraction form
    253,441.92/349,712.20 = 153,934.75/x
  3. Step 3: Cross multiply
    253,441.92x = 349,712.20 × 153,934.75
  4. Step 4: Simplify right side
    253,441.92x = 53,832,860,078.95
  5. Step 5: Solve for x
    x = 53,832,860,078.95/253,441.92
  6. Step 6: Final answer
    x = 212,407.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.