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Finding the Fourth Proportional to 710.93, 1,066.48 and 248.57

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Solution

The fourth proportional to 710.93, 1,066.48 and 248.57 is: 372.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.93 : 1,066.48 = 248.57 : x
  2. Step 2: Convert to fraction form
    710.93/1,066.48 = 248.57/x
  3. Step 3: Cross multiply
    710.93x = 1,066.48 × 248.57
  4. Step 4: Simplify right side
    710.93x = 265,094.93
  5. Step 5: Solve for x
    x = 265,094.93/710.93
  6. Step 6: Final answer
    x = 372.88

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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.