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Finding the Fourth Proportional to 1,445.74, 2,168.61 and 350.10

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Solution

The fourth proportional to 1,445.74, 2,168.61 and 350.10 is: 525.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.74 : 2,168.61 = 350.10 : x
  2. Step 2: Convert to fraction form
    1,445.74/2,168.61 = 350.10/x
  3. Step 3: Cross multiply
    1,445.74x = 2,168.61 × 350.10
  4. Step 4: Simplify right side
    1,445.74x = 759,230.36
  5. Step 5: Solve for x
    x = 759,230.36/1,445.74
  6. Step 6: Final answer
    x = 525.15

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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.