Home / 378,575.66-522,433.38-217,441.10

Finding the Fourth Proportional to 378,575.66, 522,433.38 and 217,441.10

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Solution

The fourth proportional to 378,575.66, 522,433.38 and 217,441.10 is: 300,068.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,575.66 : 522,433.38 = 217,441.10 : x
  2. Step 2: Convert to fraction form
    378,575.66/522,433.38 = 217,441.10/x
  3. Step 3: Cross multiply
    378,575.66x = 522,433.38 × 217,441.10
  4. Step 4: Simplify right side
    378,575.66x = 113,598,488,823.92
  5. Step 5: Solve for x
    x = 113,598,488,823.92/378,575.66
  6. Step 6: Final answer
    x = 300,068.13

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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.