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Finding the Fourth Proportional to 340,417.20, 510,625.80 and 118,801.20

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Solution

The fourth proportional to 340,417.20, 510,625.80 and 118,801.20 is: 178,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,417.20 : 510,625.80 = 118,801.20 : x
  2. Step 2: Convert to fraction form
    340,417.20/510,625.80 = 118,801.20/x
  3. Step 3: Cross multiply
    340,417.20x = 510,625.80 × 118,801.20
  4. Step 4: Simplify right side
    340,417.20x = 60,662,957,790.96
  5. Step 5: Solve for x
    x = 60,662,957,790.96/340,417.20
  6. Step 6: Final answer
    x = 178,201.80

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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.