Home / 1,117.20-1,675.74-295.50

Finding the Fourth Proportional to 1,117.20, 1,675.74 and 295.50

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Solution

The fourth proportional to 1,117.20, 1,675.74 and 295.50 is: 443.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.20 : 1,675.74 = 295.50 : x
  2. Step 2: Convert to fraction form
    1,117.20/1,675.74 = 295.50/x
  3. Step 3: Cross multiply
    1,117.20x = 1,675.74 × 295.50
  4. Step 4: Simplify right side
    1,117.20x = 495,181.17
  5. Step 5: Solve for x
    x = 495,181.17/1,117.20
  6. Step 6: Final answer
    x = 443.23

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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.