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Finding the Fourth Proportional to 937.69, 1,407.36 and 360.97

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Solution

The fourth proportional to 937.69, 1,407.36 and 360.97 is: 541.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.69 : 1,407.36 = 360.97 : x
  2. Step 2: Convert to fraction form
    937.69/1,407.36 = 360.97/x
  3. Step 3: Cross multiply
    937.69x = 1,407.36 × 360.97
  4. Step 4: Simplify right side
    937.69x = 508,018.46
  5. Step 5: Solve for x
    x = 508,018.46/937.69
  6. Step 6: Final answer
    x = 541.77

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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.