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Finding the Fourth Proportional to 228,877.11, 315,816.30 and 130,753.17

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Solution

The fourth proportional to 228,877.11, 315,816.30 and 130,753.17 is: 180,419.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,877.11 : 315,816.30 = 130,753.17 : x
  2. Step 2: Convert to fraction form
    228,877.11/315,816.30 = 130,753.17/x
  3. Step 3: Cross multiply
    228,877.11x = 315,816.30 × 130,753.17
  4. Step 4: Simplify right side
    228,877.11x = 41,293,982,362.67
  5. Step 5: Solve for x
    x = 41,293,982,362.67/228,877.11
  6. Step 6: Final answer
    x = 180,419.89

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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.