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Finding the Fourth Proportional to 217,530.31, 300,247.01 and 148,647.66

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Solution

The fourth proportional to 217,530.31, 300,247.01 and 148,647.66 is: 205,171.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,530.31 : 300,247.01 = 148,647.66 : x
  2. Step 2: Convert to fraction form
    217,530.31/300,247.01 = 148,647.66/x
  3. Step 3: Cross multiply
    217,530.31x = 300,247.01 × 148,647.66
  4. Step 4: Simplify right side
    217,530.31x = 44,631,015,458.50
  5. Step 5: Solve for x
    x = 44,631,015,458.50/217,530.31
  6. Step 6: Final answer
    x = 205,171.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.