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Finding the Fourth Proportional to 247,800.48, 341,992.04 and 138,915.29

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Solution

The fourth proportional to 247,800.48, 341,992.04 and 138,915.29 is: 191,718.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,800.48 : 341,992.04 = 138,915.29 : x
  2. Step 2: Convert to fraction form
    247,800.48/341,992.04 = 138,915.29/x
  3. Step 3: Cross multiply
    247,800.48x = 341,992.04 × 138,915.29
  4. Step 4: Simplify right side
    247,800.48x = 47,507,921,009.76
  5. Step 5: Solve for x
    x = 47,507,921,009.76/247,800.48
  6. Step 6: Final answer
    x = 191,718.44

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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.