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Finding the Fourth Proportional to 247,272.83, 341,254.83 and 138,388.08

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Solution

The fourth proportional to 247,272.83, 341,254.83 and 138,388.08 is: 190,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,272.83 : 341,254.83 = 138,388.08 : x
  2. Step 2: Convert to fraction form
    247,272.83/341,254.83 = 138,388.08/x
  3. Step 3: Cross multiply
    247,272.83x = 341,254.83 × 138,388.08
  4. Step 4: Simplify right side
    247,272.83x = 47,225,600,714.43
  5. Step 5: Solve for x
    x = 47,225,600,714.43/247,272.83
  6. Step 6: Final answer
    x = 190,985.80

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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.