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Finding the Fourth Proportional to 179,718.50, 248,011.53 and 100,230.50

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Solution

The fourth proportional to 179,718.50, 248,011.53 and 100,230.50 is: 138,318.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,718.50 : 248,011.53 = 100,230.50 : x
  2. Step 2: Convert to fraction form
    179,718.50/248,011.53 = 100,230.50/x
  3. Step 3: Cross multiply
    179,718.50x = 248,011.53 × 100,230.50
  4. Step 4: Simplify right side
    179,718.50x = 24,858,319,657.67
  5. Step 5: Solve for x
    x = 24,858,319,657.67/179,718.50
  6. Step 6: Final answer
    x = 138,318.09

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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.