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Finding the Fourth Proportional to 340,266.60, 510,618.60 and 198,111.60

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Solution

The fourth proportional to 340,266.60, 510,618.60 and 198,111.60 is: 297,294.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,266.60 : 510,618.60 = 198,111.60 : x
  2. Step 2: Convert to fraction form
    340,266.60/510,618.60 = 198,111.60/x
  3. Step 3: Cross multiply
    340,266.60x = 510,618.60 × 198,111.60
  4. Step 4: Simplify right side
    340,266.60x = 101,159,467,835.76
  5. Step 5: Solve for x
    x = 101,159,467,835.76/340,266.60
  6. Step 6: Final answer
    x = 297,294.73

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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.