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Finding the Fourth Proportional to 309,786.31, 464,728.07 and 132,294.25

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Solution

The fourth proportional to 309,786.31, 464,728.07 and 132,294.25 is: 198,462.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,786.31 : 464,728.07 = 132,294.25 : x
  2. Step 2: Convert to fraction form
    309,786.31/464,728.07 = 132,294.25/x
  3. Step 3: Cross multiply
    309,786.31x = 464,728.07 × 132,294.25
  4. Step 4: Simplify right side
    309,786.31x = 61,480,851,474.60
  5. Step 5: Solve for x
    x = 61,480,851,474.60/309,786.31
  6. Step 6: Final answer
    x = 198,462.13

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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.