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Finding the Fourth Proportional to 1,117.37, 1,676.15 and 295.64

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Solution

The fourth proportional to 1,117.37, 1,676.15 and 295.64 is: 443.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.37 : 1,676.15 = 295.64 : x
  2. Step 2: Convert to fraction form
    1,117.37/1,676.15 = 295.64/x
  3. Step 3: Cross multiply
    1,117.37x = 1,676.15 × 295.64
  4. Step 4: Simplify right side
    1,117.37x = 495,539.70
  5. Step 5: Solve for x
    x = 495,539.70/1,117.37
  6. Step 6: Final answer
    x = 443.49

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Double scale
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1.5x scale

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.