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Finding the Fourth Proportional to 165,408.40, 248,112.60 and 151,411.60

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Solution

The fourth proportional to 165,408.40, 248,112.60 and 151,411.60 is: 227,117.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,408.40 : 248,112.60 = 151,411.60 : x
  2. Step 2: Convert to fraction form
    165,408.40/248,112.60 = 151,411.60/x
  3. Step 3: Cross multiply
    165,408.40x = 248,112.60 × 151,411.60
  4. Step 4: Simplify right side
    165,408.40x = 37,567,125,746.16
  5. Step 5: Solve for x
    x = 37,567,125,746.16/165,408.40
  6. Step 6: Final answer
    x = 227,117.40

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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.