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Finding the Fourth Proportional to 228,503.40, 315,330.82 and 126,526.66

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Solution

The fourth proportional to 228,503.40, 315,330.82 and 126,526.66 is: 174,604.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,503.40 : 315,330.82 = 126,526.66 : x
  2. Step 2: Convert to fraction form
    228,503.40/315,330.82 = 126,526.66/x
  3. Step 3: Cross multiply
    228,503.40x = 315,330.82 × 126,526.66
  4. Step 4: Simplify right side
    228,503.40x = 39,897,755,449.66
  5. Step 5: Solve for x
    x = 39,897,755,449.66/228,503.40
  6. Step 6: Final answer
    x = 174,604.65

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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.