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Finding the Fourth Proportional to 514.77, 710.32 and 293.65

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Solution

The fourth proportional to 514.77, 710.32 and 293.65 is: 405.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.77 : 710.32 = 293.65 : x
  2. Step 2: Convert to fraction form
    514.77/710.32 = 293.65/x
  3. Step 3: Cross multiply
    514.77x = 710.32 × 293.65
  4. Step 4: Simplify right side
    514.77x = 208,585.47
  5. Step 5: Solve for x
    x = 208,585.47/514.77
  6. Step 6: Final answer
    x = 405.20

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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.