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Finding the Fourth Proportional to 251,846.34, 375,926.91 and 221,953.71

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Solution

The fourth proportional to 251,846.34, 375,926.91 and 221,953.71 is: 331,306.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,846.34 : 375,926.91 = 221,953.71 : x
  2. Step 2: Convert to fraction form
    251,846.34/375,926.91 = 221,953.71/x
  3. Step 3: Cross multiply
    251,846.34x = 375,926.91 × 221,953.71
  4. Step 4: Simplify right side
    251,846.34x = 83,438,372,363.34
  5. Step 5: Solve for x
    x = 83,438,372,363.34/251,846.34
  6. Step 6: Final answer
    x = 331,306.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.