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Finding the Fourth Proportional to 354,261.60, 531,023.28 and 154,528.32

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Solution

The fourth proportional to 354,261.60, 531,023.28 and 154,528.32 is: 231,631.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,261.60 : 531,023.28 = 154,528.32 : x
  2. Step 2: Convert to fraction form
    354,261.60/531,023.28 = 154,528.32/x
  3. Step 3: Cross multiply
    354,261.60x = 531,023.28 × 154,528.32
  4. Step 4: Simplify right side
    354,261.60x = 82,058,135,339.29
  5. Step 5: Solve for x
    x = 82,058,135,339.29/354,261.60
  6. Step 6: Final answer
    x = 231,631.47

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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.