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Finding the Fourth Proportional to 914.41, 1,371.62 and 265.13

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Solution

The fourth proportional to 914.41, 1,371.62 and 265.13 is: 397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    914.41 : 1,371.62 = 265.13 : x
  2. Step 2: Convert to fraction form
    914.41/1,371.62 = 265.13/x
  3. Step 3: Cross multiply
    914.41x = 1,371.62 × 265.13
  4. Step 4: Simplify right side
    914.41x = 363,657.61
  5. Step 5: Solve for x
    x = 363,657.61/914.41
  6. Step 6: Final answer
    x = 397.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.