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Finding the Fourth Proportional to 261,388.38, 360,719.67 and 195,861.18

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Solution

The fourth proportional to 261,388.38, 360,719.67 and 195,861.18 is: 270,291.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,388.38 : 360,719.67 = 195,861.18 : x
  2. Step 2: Convert to fraction form
    261,388.38/360,719.67 = 195,861.18/x
  3. Step 3: Cross multiply
    261,388.38x = 360,719.67 × 195,861.18
  4. Step 4: Simplify right side
    261,388.38x = 70,650,980,215.41
  5. Step 5: Solve for x
    x = 70,650,980,215.41/261,388.38
  6. Step 6: Final answer
    x = 270,291.21

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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.