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Finding the Fourth Proportional to 497.35, 745.47 and 189.01

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Solution

The fourth proportional to 497.35, 745.47 and 189.01 is: 283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.35 : 745.47 = 189.01 : x
  2. Step 2: Convert to fraction form
    497.35/745.47 = 189.01/x
  3. Step 3: Cross multiply
    497.35x = 745.47 × 189.01
  4. Step 4: Simplify right side
    497.35x = 140,897.56
  5. Step 5: Solve for x
    x = 140,897.56/497.35
  6. Step 6: Final answer
    x = 283.30

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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.