Home / 317,722.72-438,214.38-215,826.73

Finding the Fourth Proportional to 317,722.72, 438,214.38 and 215,826.73

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Solution

The fourth proportional to 317,722.72, 438,214.38 and 215,826.73 is: 297,675.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,722.72 : 438,214.38 = 215,826.73 : x
  2. Step 2: Convert to fraction form
    317,722.72/438,214.38 = 215,826.73/x
  3. Step 3: Cross multiply
    317,722.72x = 438,214.38 × 215,826.73
  4. Step 4: Simplify right side
    317,722.72x = 94,578,376,674.38
  5. Step 5: Solve for x
    x = 94,578,376,674.38/317,722.72
  6. Step 6: Final answer
    x = 297,675.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.