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Finding the Fourth Proportional to 337.09, 505.45 and 117.64

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Solution

The fourth proportional to 337.09, 505.45 and 117.64 is: 176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.09 : 505.45 = 117.64 : x
  2. Step 2: Convert to fraction form
    337.09/505.45 = 117.64/x
  3. Step 3: Cross multiply
    337.09x = 505.45 × 117.64
  4. Step 4: Simplify right side
    337.09x = 59,461.14
  5. Step 5: Solve for x
    x = 59,461.14/337.09
  6. Step 6: Final answer
    x = 176.40

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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.