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Finding the Fourth Proportional to 611.07, 917.01 and 303.14

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Solution

The fourth proportional to 611.07, 917.01 and 303.14 is: 454.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    611.07 : 917.01 = 303.14 : x
  2. Step 2: Convert to fraction form
    611.07/917.01 = 303.14/x
  3. Step 3: Cross multiply
    611.07x = 917.01 × 303.14
  4. Step 4: Simplify right side
    611.07x = 277,977.83
  5. Step 5: Solve for x
    x = 277,977.83/611.07
  6. Step 6: Final answer
    x = 454.90

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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.