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Finding the Fourth Proportional to 279,818.93, 386,150.42 and 152,494.63

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Solution

The fourth proportional to 279,818.93, 386,150.42 and 152,494.63 is: 210,442.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,818.93 : 386,150.42 = 152,494.63 : x
  2. Step 2: Convert to fraction form
    279,818.93/386,150.42 = 152,494.63/x
  3. Step 3: Cross multiply
    279,818.93x = 386,150.42 × 152,494.63
  4. Step 4: Simplify right side
    279,818.93x = 58,885,865,422.24
  5. Step 5: Solve for x
    x = 58,885,865,422.24/279,818.93
  6. Step 6: Final answer
    x = 210,442.75

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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.