Home / 339,985.20-510,054.60-199,671.60

Finding the Fourth Proportional to 339,985.20, 510,054.60 and 199,671.60

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Solution

The fourth proportional to 339,985.20, 510,054.60 and 199,671.60 is: 299,552.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,985.20 : 510,054.60 = 199,671.60 : x
  2. Step 2: Convert to fraction form
    339,985.20/510,054.60 = 199,671.60/x
  3. Step 3: Cross multiply
    339,985.20x = 510,054.60 × 199,671.60
  4. Step 4: Simplify right side
    339,985.20x = 101,843,418,069.36
  5. Step 5: Solve for x
    x = 101,843,418,069.36/339,985.20
  6. Step 6: Final answer
    x = 299,552.50

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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.