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Finding the Fourth Proportional to 1,155.83, 1,734.05 and 334.17

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Solution

The fourth proportional to 1,155.83, 1,734.05 and 334.17 is: 501.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.83 : 1,734.05 = 334.17 : x
  2. Step 2: Convert to fraction form
    1,155.83/1,734.05 = 334.17/x
  3. Step 3: Cross multiply
    1,155.83x = 1,734.05 × 334.17
  4. Step 4: Simplify right side
    1,155.83x = 579,468.32
  5. Step 5: Solve for x
    x = 579,468.32/1,155.83
  6. Step 6: Final answer
    x = 501.34

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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.