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Finding the Fourth Proportional to 540.15, 745.23 and 372.10

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Solution

The fourth proportional to 540.15, 745.23 and 372.10 is: 513.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.15 : 745.23 = 372.10 : x
  2. Step 2: Convert to fraction form
    540.15/745.23 = 372.10/x
  3. Step 3: Cross multiply
    540.15x = 745.23 × 372.10
  4. Step 4: Simplify right side
    540.15x = 277,300.08
  5. Step 5: Solve for x
    x = 277,300.08/540.15
  6. Step 6: Final answer
    x = 513.38

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1.5x scale

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.