Home / 245,558.48-338,900.68-138,133.04

Finding the Fourth Proportional to 245,558.48, 338,900.68 and 138,133.04

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Solution

The fourth proportional to 245,558.48, 338,900.68 and 138,133.04 is: 190,640.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,558.48 : 338,900.68 = 138,133.04 : x
  2. Step 2: Convert to fraction form
    245,558.48/338,900.68 = 138,133.04/x
  3. Step 3: Cross multiply
    245,558.48x = 338,900.68 × 138,133.04
  4. Step 4: Simplify right side
    245,558.48x = 46,813,381,186.47
  5. Step 5: Solve for x
    x = 46,813,381,186.47/245,558.48
  6. Step 6: Final answer
    x = 190,640.46

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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.