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Finding the Fourth Proportional to 149,608, 206,444.28 and 104,383.20

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Solution

The fourth proportional to 149,608, 206,444.28 and 104,383.20 is: 144,038.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,608 : 206,444.28 = 104,383.20 : x
  2. Step 2: Convert to fraction form
    149,608/206,444.28 = 104,383.20/x
  3. Step 3: Cross multiply
    149,608x = 206,444.28 × 104,383.20
  4. Step 4: Simplify right side
    149,608x = 21,549,314,568.10
  5. Step 5: Solve for x
    x = 21,549,314,568.10/149,608
  6. Step 6: Final answer
    x = 144,038.52

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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.