Home / 260,147.32-390,221.07-73,158.82

Finding the Fourth Proportional to 260,147.32, 390,221.07 and 73,158.82

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Solution

The fourth proportional to 260,147.32, 390,221.07 and 73,158.82 is: 109,738.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,147.32 : 390,221.07 = 73,158.82 : x
  2. Step 2: Convert to fraction form
    260,147.32/390,221.07 = 73,158.82/x
  3. Step 3: Cross multiply
    260,147.32x = 390,221.07 × 73,158.82
  4. Step 4: Simplify right side
    260,147.32x = 28,548,113,020.34
  5. Step 5: Solve for x
    x = 28,548,113,020.34/260,147.32
  6. Step 6: Final answer
    x = 109,738.26

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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.