Home / 379,926.12-569,889.85-155,286.36

Finding the Fourth Proportional to 379,926.12, 569,889.85 and 155,286.36

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Solution

The fourth proportional to 379,926.12, 569,889.85 and 155,286.36 is: 232,929.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,926.12 : 569,889.85 = 155,286.36 : x
  2. Step 2: Convert to fraction form
    379,926.12/569,889.85 = 155,286.36/x
  3. Step 3: Cross multiply
    379,926.12x = 569,889.85 × 155,286.36
  4. Step 4: Simplify right side
    379,926.12x = 88,496,120,019.23
  5. Step 5: Solve for x
    x = 88,496,120,019.23/379,926.12
  6. Step 6: Final answer
    x = 232,929.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.