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Finding the Fourth Proportional to 315,740.92, 435,722.88 and 179,768.92

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Solution

The fourth proportional to 315,740.92, 435,722.88 and 179,768.92 is: 248,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,740.92 : 435,722.88 = 179,768.92 : x
  2. Step 2: Convert to fraction form
    315,740.92/435,722.88 = 179,768.92/x
  3. Step 3: Cross multiply
    315,740.92x = 435,722.88 × 179,768.92
  4. Step 4: Simplify right side
    315,740.92x = 78,329,431,556.89
  5. Step 5: Solve for x
    x = 78,329,431,556.89/315,740.92
  6. Step 6: Final answer
    x = 248,081.34

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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.