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Finding the Fourth Proportional to 659.16, 988.42 and 350.94

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Solution

The fourth proportional to 659.16, 988.42 and 350.94 is: 526.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    659.16 : 988.42 = 350.94 : x
  2. Step 2: Convert to fraction form
    659.16/988.42 = 350.94/x
  3. Step 3: Cross multiply
    659.16x = 988.42 × 350.94
  4. Step 4: Simplify right side
    659.16x = 346,876.11
  5. Step 5: Solve for x
    x = 346,876.11/659.16
  6. Step 6: Final answer
    x = 526.24

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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.