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Finding the Fourth Proportional to 228,856.85, 315,832.45 and 126,875.82

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Solution

The fourth proportional to 228,856.85, 315,832.45 and 126,875.82 is: 175,094.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,856.85 : 315,832.45 = 126,875.82 : x
  2. Step 2: Convert to fraction form
    228,856.85/315,832.45 = 126,875.82/x
  3. Step 3: Cross multiply
    228,856.85x = 315,832.45 × 126,875.82
  4. Step 4: Simplify right side
    228,856.85x = 40,071,501,076.36
  5. Step 5: Solve for x
    x = 40,071,501,076.36/228,856.85
  6. Step 6: Final answer
    x = 175,094.17

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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.