Home / 384,961.92-531,225.90-212,869.92

Finding the Fourth Proportional to 384,961.92, 531,225.90 and 212,869.92

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Solution

The fourth proportional to 384,961.92, 531,225.90 and 212,869.92 is: 293,748.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,961.92 : 531,225.90 = 212,869.92 : x
  2. Step 2: Convert to fraction form
    384,961.92/531,225.90 = 212,869.92/x
  3. Step 3: Cross multiply
    384,961.92x = 531,225.90 × 212,869.92
  4. Step 4: Simplify right side
    384,961.92x = 113,082,014,834.93
  5. Step 5: Solve for x
    x = 113,082,014,834.93/384,961.92
  6. Step 6: Final answer
    x = 293,748.57

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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.