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Finding the Fourth Proportional to 340,385.05, 510,522.90 and 103,672.68

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Solution

The fourth proportional to 340,385.05, 510,522.90 and 103,672.68 is: 155,492.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,385.05 : 510,522.90 = 103,672.68 : x
  2. Step 2: Convert to fraction form
    340,385.05/510,522.90 = 103,672.68/x
  3. Step 3: Cross multiply
    340,385.05x = 510,522.90 × 103,672.68
  4. Step 4: Simplify right side
    340,385.05x = 52,927,277,244.37
  5. Step 5: Solve for x
    x = 52,927,277,244.37/340,385.05
  6. Step 6: Final answer
    x = 155,492.37

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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.