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Finding the Fourth Proportional to 350.10, 525.18 and 90.14

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Solution

The fourth proportional to 350.10, 525.18 and 90.14 is: 135.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.10 : 525.18 = 90.14 : x
  2. Step 2: Convert to fraction form
    350.10/525.18 = 90.14/x
  3. Step 3: Cross multiply
    350.10x = 525.18 × 90.14
  4. Step 4: Simplify right side
    350.10x = 47,337.10
  5. Step 5: Solve for x
    x = 47,337.10/350.10
  6. Step 6: Final answer
    x = 135.21

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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.