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Finding the Fourth Proportional to 916.03, 1,374.13 and 368.14

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Solution

The fourth proportional to 916.03, 1,374.13 and 368.14 is: 552.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    916.03 : 1,374.13 = 368.14 : x
  2. Step 2: Convert to fraction form
    916.03/1,374.13 = 368.14/x
  3. Step 3: Cross multiply
    916.03x = 1,374.13 × 368.14
  4. Step 4: Simplify right side
    916.03x = 505,872.22
  5. Step 5: Solve for x
    x = 505,872.22/916.03
  6. Step 6: Final answer
    x = 552.24

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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.