Home / 379,160.12-523,244.53-215,808.65

Finding the Fourth Proportional to 379,160.12, 523,244.53 and 215,808.65

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Solution

The fourth proportional to 379,160.12, 523,244.53 and 215,808.65 is: 297,817.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,160.12 : 523,244.53 = 215,808.65 : x
  2. Step 2: Convert to fraction form
    379,160.12/523,244.53 = 215,808.65/x
  3. Step 3: Cross multiply
    379,160.12x = 523,244.53 × 215,808.65
  4. Step 4: Simplify right side
    379,160.12x = 112,920,692,483.44
  5. Step 5: Solve for x
    x = 112,920,692,483.44/379,160.12
  6. Step 6: Final answer
    x = 297,817.96

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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.