Home / 361,215.90-541,445.57-121,270.91

Finding the Fourth Proportional to 361,215.90, 541,445.57 and 121,270.91

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Solution

The fourth proportional to 361,215.90, 541,445.57 and 121,270.91 is: 181,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,215.90 : 541,445.57 = 121,270.91 : x
  2. Step 2: Convert to fraction form
    361,215.90/541,445.57 = 121,270.91/x
  3. Step 3: Cross multiply
    361,215.90x = 541,445.57 × 121,270.91
  4. Step 4: Simplify right side
    361,215.90x = 65,661,593,675.79
  5. Step 5: Solve for x
    x = 65,661,593,675.79/361,215.90
  6. Step 6: Final answer
    x = 181,779.36

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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.