Home / 260,149.32-390,224.10-73,160.82

Finding the Fourth Proportional to 260,149.32, 390,224.10 and 73,160.82

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Solution

The fourth proportional to 260,149.32, 390,224.10 and 73,160.82 is: 109,741.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,149.32 : 390,224.10 = 73,160.82 : x
  2. Step 2: Convert to fraction form
    260,149.32/390,224.10 = 73,160.82/x
  3. Step 3: Cross multiply
    260,149.32x = 390,224.10 × 73,160.82
  4. Step 4: Simplify right side
    260,149.32x = 28,549,115,139.76
  5. Step 5: Solve for x
    x = 28,549,115,139.76/260,149.32
  6. Step 6: Final answer
    x = 109,741.26

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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.