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Finding the Fourth Proportional to 279,597.84, 385,855.94 and 158,750.38

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Solution

The fourth proportional to 279,597.84, 385,855.94 and 158,750.38 is: 219,081.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,597.84 : 385,855.94 = 158,750.38 : x
  2. Step 2: Convert to fraction form
    279,597.84/385,855.94 = 158,750.38/x
  3. Step 3: Cross multiply
    279,597.84x = 385,855.94 × 158,750.38
  4. Step 4: Simplify right side
    279,597.84x = 61,254,777,979.45
  5. Step 5: Solve for x
    x = 61,254,777,979.45/279,597.84
  6. Step 6: Final answer
    x = 219,081.73

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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.