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Finding the Fourth Proportional to 370.87, 556.95 and 354.67

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Solution

The fourth proportional to 370.87, 556.95 and 354.67 is: 532.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.87 : 556.95 = 354.67 : x
  2. Step 2: Convert to fraction form
    370.87/556.95 = 354.67/x
  3. Step 3: Cross multiply
    370.87x = 556.95 × 354.67
  4. Step 4: Simplify right side
    370.87x = 197,533.46
  5. Step 5: Solve for x
    x = 197,533.46/370.87
  6. Step 6: Final answer
    x = 532.62

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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.