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Finding the Fourth Proportional to 245,577.88, 338,945.88 and 159,643.36

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Solution

The fourth proportional to 245,577.88, 338,945.88 and 159,643.36 is: 220,339.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,577.88 : 338,945.88 = 159,643.36 : x
  2. Step 2: Convert to fraction form
    245,577.88/338,945.88 = 159,643.36/x
  3. Step 3: Cross multiply
    245,577.88x = 338,945.88 × 159,643.36
  4. Step 4: Simplify right side
    245,577.88x = 54,110,459,141.36
  5. Step 5: Solve for x
    x = 54,110,459,141.36/245,577.88
  6. Step 6: Final answer
    x = 220,339.30

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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.