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Finding the Fourth Proportional to 376, 559.70 and 358.30

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Solution

The fourth proportional to 376, 559.70 and 358.30 is: 533.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    376 : 559.70 = 358.30 : x
  2. Step 2: Convert to fraction form
    376/559.70 = 358.30/x
  3. Step 3: Cross multiply
    376x = 559.70 × 358.30
  4. Step 4: Simplify right side
    376x = 200,540.51
  5. Step 5: Solve for x
    x = 200,540.51/376
  6. Step 6: Final answer
    x = 533.35

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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.