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Finding the Fourth Proportional to 370.17, 554.18 and 356.13

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Solution

The fourth proportional to 370.17, 554.18 and 356.13 is: 533.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.17 : 554.18 = 356.13 : x
  2. Step 2: Convert to fraction form
    370.17/554.18 = 356.13/x
  3. Step 3: Cross multiply
    370.17x = 554.18 × 356.13
  4. Step 4: Simplify right side
    370.17x = 197,358.34
  5. Step 5: Solve for x
    x = 197,358.34/370.17
  6. Step 6: Final answer
    x = 533.16

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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.