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Finding the Fourth Proportional to 370.90, 554.16 and 358.14

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Solution

The fourth proportional to 370.90, 554.16 and 358.14 is: 535.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.90 : 554.16 = 358.14 : x
  2. Step 2: Convert to fraction form
    370.90/554.16 = 358.14/x
  3. Step 3: Cross multiply
    370.90x = 554.16 × 358.14
  4. Step 4: Simplify right side
    370.90x = 198,466.86
  5. Step 5: Solve for x
    x = 198,466.86/370.90
  6. Step 6: Final answer
    x = 535.10

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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.