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Finding the Fourth Proportional to 149,805.04, 206,379.30 and 104,400.40

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Solution

The fourth proportional to 149,805.04, 206,379.30 and 104,400.40 is: 143,827.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,805.04 : 206,379.30 = 104,400.40 : x
  2. Step 2: Convert to fraction form
    149,805.04/206,379.30 = 104,400.40/x
  3. Step 3: Cross multiply
    149,805.04x = 206,379.30 × 104,400.40
  4. Step 4: Simplify right side
    149,805.04x = 21,546,081,471.72
  5. Step 5: Solve for x
    x = 21,546,081,471.72/149,805.04
  6. Step 6: Final answer
    x = 143,827.48

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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.