Home / 245,206.66-338,395.14-137,776.36

Finding the Fourth Proportional to 245,206.66, 338,395.14 and 137,776.36

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Solution

The fourth proportional to 245,206.66, 338,395.14 and 137,776.36 is: 190,136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,206.66 : 338,395.14 = 137,776.36 : x
  2. Step 2: Convert to fraction form
    245,206.66/338,395.14 = 137,776.36/x
  3. Step 3: Cross multiply
    245,206.66x = 338,395.14 × 137,776.36
  4. Step 4: Simplify right side
    245,206.66x = 46,622,850,630.89
  5. Step 5: Solve for x
    x = 46,622,850,630.89/245,206.66
  6. Step 6: Final answer
    x = 190,136.97

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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.