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Finding the Fourth Proportional to 429.05, 591.55 and 358.26

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Solution

The fourth proportional to 429.05, 591.55 and 358.26 is: 493.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    429.05 : 591.55 = 358.26 : x
  2. Step 2: Convert to fraction form
    429.05/591.55 = 358.26/x
  3. Step 3: Cross multiply
    429.05x = 591.55 × 358.26
  4. Step 4: Simplify right side
    429.05x = 211,925.75
  5. Step 5: Solve for x
    x = 211,925.75/429.05
  6. Step 6: Final answer
    x = 493.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.