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Finding the Fourth Proportional to 514.85, 710.55 and 293.83

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Solution

The fourth proportional to 514.85, 710.55 and 293.83 is: 405.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.85 : 710.55 = 293.83 : x
  2. Step 2: Convert to fraction form
    514.85/710.55 = 293.83/x
  3. Step 3: Cross multiply
    514.85x = 710.55 × 293.83
  4. Step 4: Simplify right side
    514.85x = 208,779.13
  5. Step 5: Solve for x
    x = 208,779.13/514.85
  6. Step 6: Final answer
    x = 405.52

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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.