Home / 373,826.68-515,820-220,843.60

Finding the Fourth Proportional to 373,826.68, 515,820 and 220,843.60

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Solution

The fourth proportional to 373,826.68, 515,820 and 220,843.60 is: 304,728.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,826.68 : 515,820 = 220,843.60 : x
  2. Step 2: Convert to fraction form
    373,826.68/515,820 = 220,843.60/x
  3. Step 3: Cross multiply
    373,826.68x = 515,820 × 220,843.60
  4. Step 4: Simplify right side
    373,826.68x = 113,915,545,752
  5. Step 5: Solve for x
    x = 113,915,545,752/373,826.68
  6. Step 6: Final answer
    x = 304,728.24

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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.