Home / 330,321.24-455,851.76-187,079.20

Finding the Fourth Proportional to 330,321.24, 455,851.76 and 187,079.20

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Solution

The fourth proportional to 330,321.24, 455,851.76 and 187,079.20 is: 258,174.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,321.24 : 455,851.76 = 187,079.20 : x
  2. Step 2: Convert to fraction form
    330,321.24/455,851.76 = 187,079.20/x
  3. Step 3: Cross multiply
    330,321.24x = 455,851.76 × 187,079.20
  4. Step 4: Simplify right side
    330,321.24x = 85,280,382,579.39
  5. Step 5: Solve for x
    x = 85,280,382,579.39/330,321.24
  6. Step 6: Final answer
    x = 258,174.08

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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.