Home / 268,217.10-401,669.55-127,811.70

Finding the Fourth Proportional to 268,217.10, 401,669.55 and 127,811.70

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Solution

The fourth proportional to 268,217.10, 401,669.55 and 127,811.70 is: 191,404.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,217.10 : 401,669.55 = 127,811.70 : x
  2. Step 2: Convert to fraction form
    268,217.10/401,669.55 = 127,811.70/x
  3. Step 3: Cross multiply
    268,217.10x = 401,669.55 × 127,811.70
  4. Step 4: Simplify right side
    268,217.10x = 51,338,068,023.74
  5. Step 5: Solve for x
    x = 51,338,068,023.74/268,217.10
  6. Step 6: Final answer
    x = 191,404.90

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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.