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Finding the Fourth Proportional to 836.51, 1,254.98 and 349.46

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Solution

The fourth proportional to 836.51, 1,254.98 and 349.46 is: 524.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    836.51 : 1,254.98 = 349.46 : x
  2. Step 2: Convert to fraction form
    836.51/1,254.98 = 349.46/x
  3. Step 3: Cross multiply
    836.51x = 1,254.98 × 349.46
  4. Step 4: Simplify right side
    836.51x = 438,565.31
  5. Step 5: Solve for x
    x = 438,565.31/836.51
  6. Step 6: Final answer
    x = 524.28

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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.