Home / 254,879.10-382,318.65-215,513.10

Finding the Fourth Proportional to 254,879.10, 382,318.65 and 215,513.10

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Solution

The fourth proportional to 254,879.10, 382,318.65 and 215,513.10 is: 323,269.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,879.10 : 382,318.65 = 215,513.10 : x
  2. Step 2: Convert to fraction form
    254,879.10/382,318.65 = 215,513.10/x
  3. Step 3: Cross multiply
    254,879.10x = 382,318.65 × 215,513.10
  4. Step 4: Simplify right side
    254,879.10x = 82,394,677,449.32
  5. Step 5: Solve for x
    x = 82,394,677,449.32/254,879.10
  6. Step 6: Final answer
    x = 323,269.65

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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.