Home / 330,456.81-456,029.28-187,244.16

Finding the Fourth Proportional to 330,456.81, 456,029.28 and 187,244.16

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Solution

The fourth proportional to 330,456.81, 456,029.28 and 187,244.16 is: 258,396.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,456.81 : 456,029.28 = 187,244.16 : x
  2. Step 2: Convert to fraction form
    330,456.81/456,029.28 = 187,244.16/x
  3. Step 3: Cross multiply
    330,456.81x = 456,029.28 × 187,244.16
  4. Step 4: Simplify right side
    330,456.81x = 85,388,819,469.00
  5. Step 5: Solve for x
    x = 85,388,819,469.00/330,456.81
  6. Step 6: Final answer
    x = 258,396.31

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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.