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Finding the Fourth Proportional to 306,843.96, 423,432.86 and 170,883.65

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Solution

The fourth proportional to 306,843.96, 423,432.86 and 170,883.65 is: 235,812.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,843.96 : 423,432.86 = 170,883.65 : x
  2. Step 2: Convert to fraction form
    306,843.96/423,432.86 = 170,883.65/x
  3. Step 3: Cross multiply
    306,843.96x = 423,432.86 × 170,883.65
  4. Step 4: Simplify right side
    306,843.96x = 72,357,749,675.16
  5. Step 5: Solve for x
    x = 72,357,749,675.16/306,843.96
  6. Step 6: Final answer
    x = 235,812.85

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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.