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Finding the Fourth Proportional to 350.76, 526.13 and 145.10

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Solution

The fourth proportional to 350.76, 526.13 and 145.10 is: 217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.76 : 526.13 = 145.10 : x
  2. Step 2: Convert to fraction form
    350.76/526.13 = 145.10/x
  3. Step 3: Cross multiply
    350.76x = 526.13 × 145.10
  4. Step 4: Simplify right side
    350.76x = 76,341.46
  5. Step 5: Solve for x
    x = 76,341.46/350.76
  6. Step 6: Final answer
    x = 217.65

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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.