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Finding the Fourth Proportional to 262,407.60, 393,805.80 and 104,749.20

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Solution

The fourth proportional to 262,407.60, 393,805.80 and 104,749.20 is: 157,201.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,407.60 : 393,805.80 = 104,749.20 : x
  2. Step 2: Convert to fraction form
    262,407.60/393,805.80 = 104,749.20/x
  3. Step 3: Cross multiply
    262,407.60x = 393,805.80 × 104,749.20
  4. Step 4: Simplify right side
    262,407.60x = 41,250,842,505.36
  5. Step 5: Solve for x
    x = 41,250,842,505.36/262,407.60
  6. Step 6: Final answer
    x = 157,201.40

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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.