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Finding the Fourth Proportional to 315,027.50, 434,722.14 and 179,043.50

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Solution

The fourth proportional to 315,027.50, 434,722.14 and 179,043.50 is: 247,071.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,027.50 : 434,722.14 = 179,043.50 : x
  2. Step 2: Convert to fraction form
    315,027.50/434,722.14 = 179,043.50/x
  3. Step 3: Cross multiply
    315,027.50x = 434,722.14 × 179,043.50
  4. Step 4: Simplify right side
    315,027.50x = 77,834,173,473.09
  5. Step 5: Solve for x
    x = 77,834,173,473.09/315,027.50
  6. Step 6: Final answer
    x = 247,071.04

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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.