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Finding the Fourth Proportional to 1,117.17, 1,675.75 and 337.17

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Solution

The fourth proportional to 1,117.17, 1,675.75 and 337.17 is: 505.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.17 : 1,675.75 = 337.17 : x
  2. Step 2: Convert to fraction form
    1,117.17/1,675.75 = 337.17/x
  3. Step 3: Cross multiply
    1,117.17x = 1,675.75 × 337.17
  4. Step 4: Simplify right side
    1,117.17x = 565,011.78
  5. Step 5: Solve for x
    x = 565,011.78/1,117.17
  6. Step 6: Final answer
    x = 505.75

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Double scale
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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.