Home / 260,186.16-390,279.24-73,197.66

Finding the Fourth Proportional to 260,186.16, 390,279.24 and 73,197.66

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Solution

The fourth proportional to 260,186.16, 390,279.24 and 73,197.66 is: 109,796.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,186.16 : 390,279.24 = 73,197.66 : x
  2. Step 2: Convert to fraction form
    260,186.16/390,279.24 = 73,197.66/x
  3. Step 3: Cross multiply
    260,186.16x = 390,279.24 × 73,197.66
  4. Step 4: Simplify right side
    260,186.16x = 28,567,527,114.58
  5. Step 5: Solve for x
    x = 28,567,527,114.58/260,186.16
  6. Step 6: Final answer
    x = 109,796.49

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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.