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Finding the Fourth Proportional to 340,552.60, 510,828.90 and 214,581.40

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Solution

The fourth proportional to 340,552.60, 510,828.90 and 214,581.40 is: 321,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,552.60 : 510,828.90 = 214,581.40 : x
  2. Step 2: Convert to fraction form
    340,552.60/510,828.90 = 214,581.40/x
  3. Step 3: Cross multiply
    340,552.60x = 510,828.90 × 214,581.40
  4. Step 4: Simplify right side
    340,552.60x = 109,614,380,522.46
  5. Step 5: Solve for x
    x = 109,614,380,522.46/340,552.60
  6. Step 6: Final answer
    x = 321,872.10

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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.