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Finding the Fourth Proportional to 1,155.81, 1,734.02 and 334.16

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Solution

The fourth proportional to 1,155.81, 1,734.02 and 334.16 is: 501.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.81 : 1,734.02 = 334.16 : x
  2. Step 2: Convert to fraction form
    1,155.81/1,734.02 = 334.16/x
  3. Step 3: Cross multiply
    1,155.81x = 1,734.02 × 334.16
  4. Step 4: Simplify right side
    1,155.81x = 579,429.78
  5. Step 5: Solve for x
    x = 579,429.78/1,155.81
  6. Step 6: Final answer
    x = 501.32

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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.