Home / 317,815.92-438,226.56-202,943.52

Finding the Fourth Proportional to 317,815.92, 438,226.56 and 202,943.52

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Solution

The fourth proportional to 317,815.92, 438,226.56 and 202,943.52 is: 279,832.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,815.92 : 438,226.56 = 202,943.52 : x
  2. Step 2: Convert to fraction form
    317,815.92/438,226.56 = 202,943.52/x
  3. Step 3: Cross multiply
    317,815.92x = 438,226.56 × 202,943.52
  4. Step 4: Simplify right side
    317,815.92x = 88,935,240,643.89
  5. Step 5: Solve for x
    x = 88,935,240,643.89/317,815.92
  6. Step 6: Final answer
    x = 279,832.55

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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.