Home / 261,823.42-392,705.72-72,310.73

Finding the Fourth Proportional to 261,823.42, 392,705.72 and 72,310.73

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Solution

The fourth proportional to 261,823.42, 392,705.72 and 72,310.73 is: 108,457.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,823.42 : 392,705.72 = 72,310.73 : x
  2. Step 2: Convert to fraction form
    261,823.42/392,705.72 = 72,310.73/x
  3. Step 3: Cross multiply
    261,823.42x = 392,705.72 × 72,310.73
  4. Step 4: Simplify right side
    261,823.42x = 28,396,837,288.38
  5. Step 5: Solve for x
    x = 28,396,837,288.38/261,823.42
  6. Step 6: Final answer
    x = 108,457.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.