Home / 1,178.24-1,767.38-356.51

Finding the Fourth Proportional to 1,178.24, 1,767.38 and 356.51

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Solution

The fourth proportional to 1,178.24, 1,767.38 and 356.51 is: 534.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178.24 : 1,767.38 = 356.51 : x
  2. Step 2: Convert to fraction form
    1,178.24/1,767.38 = 356.51/x
  3. Step 3: Cross multiply
    1,178.24x = 1,767.38 × 356.51
  4. Step 4: Simplify right side
    1,178.24x = 630,078.02
  5. Step 5: Solve for x
    x = 630,078.02/1,178.24
  6. Step 6: Final answer
    x = 534.76

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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.