Home / 379,176.90-523,267.71-215,825.43

Finding the Fourth Proportional to 379,176.90, 523,267.71 and 215,825.43

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Solution

The fourth proportional to 379,176.90, 523,267.71 and 215,825.43 is: 297,841.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,176.90 : 523,267.71 = 215,825.43 : x
  2. Step 2: Convert to fraction form
    379,176.90/523,267.71 = 215,825.43/x
  3. Step 3: Cross multiply
    379,176.90x = 523,267.71 × 215,825.43
  4. Step 4: Simplify right side
    379,176.90x = 112,934,478,515.87
  5. Step 5: Solve for x
    x = 112,934,478,515.87/379,176.90
  6. Step 6: Final answer
    x = 297,841.14

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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.