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Finding the Fourth Proportional to 275,165.60, 379,748.16 and 152,698.16

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Solution

The fourth proportional to 275,165.60, 379,748.16 and 152,698.16 is: 210,734.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,165.60 : 379,748.16 = 152,698.16 : x
  2. Step 2: Convert to fraction form
    275,165.60/379,748.16 = 152,698.16/x
  3. Step 3: Cross multiply
    275,165.60x = 379,748.16 × 152,698.16
  4. Step 4: Simplify right side
    275,165.60x = 57,986,845,295.39
  5. Step 5: Solve for x
    x = 57,986,845,295.39/275,165.60
  6. Step 6: Final answer
    x = 210,734.36

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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.