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Finding the Fourth Proportional to 545.24, 753.36 and 371.36

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Solution

The fourth proportional to 545.24, 753.36 and 371.36 is: 513.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.24 : 753.36 = 371.36 : x
  2. Step 2: Convert to fraction form
    545.24/753.36 = 371.36/x
  3. Step 3: Cross multiply
    545.24x = 753.36 × 371.36
  4. Step 4: Simplify right side
    545.24x = 279,767.77
  5. Step 5: Solve for x
    x = 279,767.77/545.24
  6. Step 6: Final answer
    x = 513.11

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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.