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Finding the Fourth Proportional to 336,317, 463,854.90 and 215,469.50

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Solution

The fourth proportional to 336,317, 463,854.90 and 215,469.50 is: 297,179.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,317 : 463,854.90 = 215,469.50 : x
  2. Step 2: Convert to fraction form
    336,317/463,854.90 = 215,469.50/x
  3. Step 3: Cross multiply
    336,317x = 463,854.90 × 215,469.50
  4. Step 4: Simplify right side
    336,317x = 99,946,583,375.55
  5. Step 5: Solve for x
    x = 99,946,583,375.55/336,317
  6. Step 6: Final answer
    x = 297,179.69

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1.5x scale

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.