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Finding the Fourth Proportional to 179,494.88, 247,666.56 and 112,388

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Solution

The fourth proportional to 179,494.88, 247,666.56 and 112,388 is: 155,072.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,494.88 : 247,666.56 = 112,388 : x
  2. Step 2: Convert to fraction form
    179,494.88/247,666.56 = 112,388/x
  3. Step 3: Cross multiply
    179,494.88x = 247,666.56 × 112,388
  4. Step 4: Simplify right side
    179,494.88x = 27,834,749,345.28
  5. Step 5: Solve for x
    x = 27,834,749,345.28/179,494.88
  6. Step 6: Final answer
    x = 155,072.66

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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.