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Finding the Fourth Proportional to 373.38, 563.42 and 358.40

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Solution

The fourth proportional to 373.38, 563.42 and 358.40 is: 540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.38 : 563.42 = 358.40 : x
  2. Step 2: Convert to fraction form
    373.38/563.42 = 358.40/x
  3. Step 3: Cross multiply
    373.38x = 563.42 × 358.40
  4. Step 4: Simplify right side
    373.38x = 201,925.12
  5. Step 5: Solve for x
    x = 201,925.12/373.38
  6. Step 6: Final answer
    x = 540.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.