Home / 245,914.45-339,355.31-138,482.16

Finding the Fourth Proportional to 245,914.45, 339,355.31 and 138,482.16

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Solution

The fourth proportional to 245,914.45, 339,355.31 and 138,482.16 is: 191,101.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,914.45 : 339,355.31 = 138,482.16 : x
  2. Step 2: Convert to fraction form
    245,914.45/339,355.31 = 138,482.16/x
  3. Step 3: Cross multiply
    245,914.45x = 339,355.31 × 138,482.16
  4. Step 4: Simplify right side
    245,914.45x = 46,994,654,371.28
  5. Step 5: Solve for x
    x = 46,994,654,371.28/245,914.45
  6. Step 6: Final answer
    x = 191,101.64

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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.