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Finding the Fourth Proportional to 228,712.96, 315,625.73 and 126,740.11

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Solution

The fourth proportional to 228,712.96, 315,625.73 and 126,740.11 is: 174,902.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,712.96 : 315,625.73 = 126,740.11 : x
  2. Step 2: Convert to fraction form
    228,712.96/315,625.73 = 126,740.11/x
  3. Step 3: Cross multiply
    228,712.96x = 315,625.73 × 126,740.11
  4. Step 4: Simplify right side
    228,712.96x = 40,002,440,054.76
  5. Step 5: Solve for x
    x = 40,002,440,054.76/228,712.96
  6. Step 6: Final answer
    x = 174,902.38

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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.