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Finding the Fourth Proportional to 312,287.92, 430,958.76 and 169,048.04

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Solution

The fourth proportional to 312,287.92, 430,958.76 and 169,048.04 is: 233,287.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,287.92 : 430,958.76 = 169,048.04 : x
  2. Step 2: Convert to fraction form
    312,287.92/430,958.76 = 169,048.04/x
  3. Step 3: Cross multiply
    312,287.92x = 430,958.76 × 169,048.04
  4. Step 4: Simplify right side
    312,287.92x = 72,852,733,698.83
  5. Step 5: Solve for x
    x = 72,852,733,698.83/312,287.92
  6. Step 6: Final answer
    x = 233,287.07

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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.