Home / 1,020.12-1,530.15-250.62

Finding the Fourth Proportional to 1,020.12, 1,530.15 and 250.62

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Solution

The fourth proportional to 1,020.12, 1,530.15 and 250.62 is: 375.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020.12 : 1,530.15 = 250.62 : x
  2. Step 2: Convert to fraction form
    1,020.12/1,530.15 = 250.62/x
  3. Step 3: Cross multiply
    1,020.12x = 1,530.15 × 250.62
  4. Step 4: Simplify right side
    1,020.12x = 383,486.19
  5. Step 5: Solve for x
    x = 383,486.19/1,020.12
  6. Step 6: Final answer
    x = 375.92

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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.