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Finding the Fourth Proportional to 514.65, 772.06 and 283.65

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Solution

The fourth proportional to 514.65, 772.06 and 283.65 is: 425.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.65 : 772.06 = 283.65 : x
  2. Step 2: Convert to fraction form
    514.65/772.06 = 283.65/x
  3. Step 3: Cross multiply
    514.65x = 772.06 × 283.65
  4. Step 4: Simplify right side
    514.65x = 218,994.82
  5. Step 5: Solve for x
    x = 218,994.82/514.65
  6. Step 6: Final answer
    x = 425.52

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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.