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Finding the Fourth Proportional to 340,173.06, 510,425.57 and 213,872.68

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Solution

The fourth proportional to 340,173.06, 510,425.57 and 213,872.68 is: 320,913.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,173.06 : 510,425.57 = 213,872.68 : x
  2. Step 2: Convert to fraction form
    340,173.06/510,425.57 = 213,872.68/x
  3. Step 3: Cross multiply
    340,173.06x = 510,425.57 × 213,872.68
  4. Step 4: Simplify right side
    340,173.06x = 109,166,084,596.43
  5. Step 5: Solve for x
    x = 109,166,084,596.43/340,173.06
  6. Step 6: Final answer
    x = 320,913.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.