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Finding the Fourth Proportional to 936.02, 1,402.76 and 358.58

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Solution

The fourth proportional to 936.02, 1,402.76 and 358.58 is: 537.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.02 : 1,402.76 = 358.58 : x
  2. Step 2: Convert to fraction form
    936.02/1,402.76 = 358.58/x
  3. Step 3: Cross multiply
    936.02x = 1,402.76 × 358.58
  4. Step 4: Simplify right side
    936.02x = 503,006.08
  5. Step 5: Solve for x
    x = 503,006.08/936.02
  6. Step 6: Final answer
    x = 537.39

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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.