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Finding the Fourth Proportional to 279,558.34, 385,794.90 and 152,233.83

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Solution

The fourth proportional to 279,558.34, 385,794.90 and 152,233.83 is: 210,085.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,558.34 : 385,794.90 = 152,233.83 : x
  2. Step 2: Convert to fraction form
    279,558.34/385,794.90 = 152,233.83/x
  3. Step 3: Cross multiply
    279,558.34x = 385,794.90 × 152,233.83
  4. Step 4: Simplify right side
    279,558.34x = 58,731,035,221.47
  5. Step 5: Solve for x
    x = 58,731,035,221.47/279,558.34
  6. Step 6: Final answer
    x = 210,085.08

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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.