Home / 218,847.23-328,299.55-85,710.18

Finding the Fourth Proportional to 218,847.23, 328,299.55 and 85,710.18

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Solution

The fourth proportional to 218,847.23, 328,299.55 and 85,710.18 is: 128,576.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,847.23 : 328,299.55 = 85,710.18 : x
  2. Step 2: Convert to fraction form
    218,847.23/328,299.55 = 85,710.18/x
  3. Step 3: Cross multiply
    218,847.23x = 328,299.55 × 85,710.18
  4. Step 4: Simplify right side
    218,847.23x = 28,138,613,095.87
  5. Step 5: Solve for x
    x = 28,138,613,095.87/218,847.23
  6. Step 6: Final answer
    x = 128,576.51

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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.