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Finding the Fourth Proportional to 315,000.72, 434,684.52 and 179,016.48

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Solution

The fourth proportional to 315,000.72, 434,684.52 and 179,016.48 is: 247,033.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,000.72 : 434,684.52 = 179,016.48 : x
  2. Step 2: Convert to fraction form
    315,000.72/434,684.52 = 179,016.48/x
  3. Step 3: Cross multiply
    315,000.72x = 434,684.52 × 179,016.48
  4. Step 4: Simplify right side
    315,000.72x = 77,815,692,680.89
  5. Step 5: Solve for x
    x = 77,815,692,680.89/315,000.72
  6. Step 6: Final answer
    x = 247,033.38

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1.5x scale

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.