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Finding the Fourth Proportional to 279,896.74, 386,261.52 and 152,572.33

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Solution

The fourth proportional to 279,896.74, 386,261.52 and 152,572.33 is: 210,552.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,896.74 : 386,261.52 = 152,572.33 : x
  2. Step 2: Convert to fraction form
    279,896.74/386,261.52 = 152,572.33/x
  3. Step 3: Cross multiply
    279,896.74x = 386,261.52 × 152,572.33
  4. Step 4: Simplify right side
    279,896.74x = 58,932,820,095.74
  5. Step 5: Solve for x
    x = 58,932,820,095.74/279,896.74
  6. Step 6: Final answer
    x = 210,552.01

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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.