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Finding the Fourth Proportional to 310,866.78, 466,300.17 and 205,661.19

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Solution

The fourth proportional to 310,866.78, 466,300.17 and 205,661.19 is: 308,491.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,866.78 : 466,300.17 = 205,661.19 : x
  2. Step 2: Convert to fraction form
    310,866.78/466,300.17 = 205,661.19/x
  3. Step 3: Cross multiply
    310,866.78x = 466,300.17 × 205,661.19
  4. Step 4: Simplify right side
    310,866.78x = 95,899,847,859.40
  5. Step 5: Solve for x
    x = 95,899,847,859.40/310,866.78
  6. Step 6: Final answer
    x = 308,491.79

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Similar ratio
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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.