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Finding the Fourth Proportional to 279,854.52, 386,203.62 and 152,529.96

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Solution

The fourth proportional to 279,854.52, 386,203.62 and 152,529.96 is: 210,493.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,854.52 : 386,203.62 = 152,529.96 : x
  2. Step 2: Convert to fraction form
    279,854.52/386,203.62 = 152,529.96/x
  3. Step 3: Cross multiply
    279,854.52x = 386,203.62 × 152,529.96
  4. Step 4: Simplify right side
    279,854.52x = 58,907,622,710.46
  5. Step 5: Solve for x
    x = 58,907,622,710.46/279,854.52
  6. Step 6: Final answer
    x = 210,493.73

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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.