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Finding the Fourth Proportional to 228,937.89, 315,950.22 and 126,972.66

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Solution

The fourth proportional to 228,937.89, 315,950.22 and 126,972.66 is: 175,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,937.89 : 315,950.22 = 126,972.66 : x
  2. Step 2: Convert to fraction form
    228,937.89/315,950.22 = 126,972.66/x
  3. Step 3: Cross multiply
    228,937.89x = 315,950.22 × 126,972.66
  4. Step 4: Simplify right side
    228,937.89x = 40,117,039,860.99
  5. Step 5: Solve for x
    x = 40,117,039,860.99/228,937.89
  6. Step 6: Final answer
    x = 175,231.11

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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.