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Finding the Fourth Proportional to 279,853.52, 386,202.24 and 152,528.96

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Solution

The fourth proportional to 279,853.52, 386,202.24 and 152,528.96 is: 210,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,853.52 : 386,202.24 = 152,528.96 : x
  2. Step 2: Convert to fraction form
    279,853.52/386,202.24 = 152,528.96/x
  3. Step 3: Cross multiply
    279,853.52x = 386,202.24 × 152,528.96
  4. Step 4: Simplify right side
    279,853.52x = 58,907,026,016.87
  5. Step 5: Solve for x
    x = 58,907,026,016.87/279,853.52
  6. Step 6: Final answer
    x = 210,492.35

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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.