Home / 245,486.03-338,772.74-138,055.10

Finding the Fourth Proportional to 245,486.03, 338,772.74 and 138,055.10

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Solution

The fourth proportional to 245,486.03, 338,772.74 and 138,055.10 is: 190,517.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,486.03 : 338,772.74 = 138,055.10 : x
  2. Step 2: Convert to fraction form
    245,486.03/338,772.74 = 138,055.10/x
  3. Step 3: Cross multiply
    245,486.03x = 338,772.74 × 138,055.10
  4. Step 4: Simplify right side
    245,486.03x = 46,769,302,113.83
  5. Step 5: Solve for x
    x = 46,769,302,113.83/245,486.03
  6. Step 6: Final answer
    x = 190,517.17

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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.