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Finding the Fourth Proportional to 738.03, 1,107.06 and 190.20

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Solution

The fourth proportional to 738.03, 1,107.06 and 190.20 is: 285.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    738.03 : 1,107.06 = 190.20 : x
  2. Step 2: Convert to fraction form
    738.03/1,107.06 = 190.20/x
  3. Step 3: Cross multiply
    738.03x = 1,107.06 × 190.20
  4. Step 4: Simplify right side
    738.03x = 210,562.81
  5. Step 5: Solve for x
    x = 210,562.81/738.03
  6. Step 6: Final answer
    x = 285.30

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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.