Home / 260,733.74-390,439.04-218,502.77

Finding the Fourth Proportional to 260,733.74, 390,439.04 and 218,502.77

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Solution

The fourth proportional to 260,733.74, 390,439.04 and 218,502.77 is: 327,199.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,733.74 : 390,439.04 = 218,502.77 : x
  2. Step 2: Convert to fraction form
    260,733.74/390,439.04 = 218,502.77/x
  3. Step 3: Cross multiply
    260,733.74x = 390,439.04 × 218,502.77
  4. Step 4: Simplify right side
    260,733.74x = 85,312,008,711.43
  5. Step 5: Solve for x
    x = 85,312,008,711.43/260,733.74
  6. Step 6: Final answer
    x = 327,199.73

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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.