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Finding the Fourth Proportional to 279,537.67, 385,751.46 and 170,823.79

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Solution

The fourth proportional to 279,537.67, 385,751.46 and 170,823.79 is: 235,730.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,537.67 : 385,751.46 = 170,823.79 : x
  2. Step 2: Convert to fraction form
    279,537.67/385,751.46 = 170,823.79/x
  3. Step 3: Cross multiply
    279,537.67x = 385,751.46 × 170,823.79
  4. Step 4: Simplify right side
    279,537.67x = 65,895,527,359.61
  5. Step 5: Solve for x
    x = 65,895,527,359.61/279,537.67
  6. Step 6: Final answer
    x = 235,730.40

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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.