Home / 260,438.23-392,609.38-243,078.18

Finding the Fourth Proportional to 260,438.23, 392,609.38 and 243,078.18

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Solution

The fourth proportional to 260,438.23, 392,609.38 and 243,078.18 is: 366,439.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,438.23 : 392,609.38 = 243,078.18 : x
  2. Step 2: Convert to fraction form
    260,438.23/392,609.38 = 243,078.18/x
  3. Step 3: Cross multiply
    260,438.23x = 392,609.38 × 243,078.18
  4. Step 4: Simplify right side
    260,438.23x = 95,434,771,917.12
  5. Step 5: Solve for x
    x = 95,434,771,917.12/260,438.23
  6. Step 6: Final answer
    x = 366,439.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.