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Finding the Fourth Proportional to 179,356.80, 247,512.42 and 98,784.12

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Solution

The fourth proportional to 179,356.80, 247,512.42 and 98,784.12 is: 136,322.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,356.80 : 247,512.42 = 98,784.12 : x
  2. Step 2: Convert to fraction form
    179,356.80/247,512.42 = 98,784.12/x
  3. Step 3: Cross multiply
    179,356.80x = 247,512.42 × 98,784.12
  4. Step 4: Simplify right side
    179,356.80x = 24,450,296,598.77
  5. Step 5: Solve for x
    x = 24,450,296,598.77/179,356.80
  6. Step 6: Final answer
    x = 136,322.11

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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.