Home / 245,689.18-339,049.96-138,261.02

Finding the Fourth Proportional to 245,689.18, 339,049.96 and 138,261.02

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Solution

The fourth proportional to 245,689.18, 339,049.96 and 138,261.02 is: 190,799.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,689.18 : 339,049.96 = 138,261.02 : x
  2. Step 2: Convert to fraction form
    245,689.18/339,049.96 = 138,261.02/x
  3. Step 3: Cross multiply
    245,689.18x = 339,049.96 × 138,261.02
  4. Step 4: Simplify right side
    245,689.18x = 46,877,391,259.66
  5. Step 5: Solve for x
    x = 46,877,391,259.66/245,689.18
  6. Step 6: Final answer
    x = 190,799.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.