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Finding the Fourth Proportional to 370.74, 553.45 and 357.93

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Solution

The fourth proportional to 370.74, 553.45 and 357.93 is: 534.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.74 : 553.45 = 357.93 : x
  2. Step 2: Convert to fraction form
    370.74/553.45 = 357.93/x
  3. Step 3: Cross multiply
    370.74x = 553.45 × 357.93
  4. Step 4: Simplify right side
    370.74x = 198,096.36
  5. Step 5: Solve for x
    x = 198,096.36/370.74
  6. Step 6: Final answer
    x = 534.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.