Home / 245,055.13-338,136.39-153,163.58

Finding the Fourth Proportional to 245,055.13, 338,136.39 and 153,163.58

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Solution

The fourth proportional to 245,055.13, 338,136.39 and 153,163.58 is: 211,340.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,055.13 : 338,136.39 = 153,163.58 : x
  2. Step 2: Convert to fraction form
    245,055.13/338,136.39 = 153,163.58/x
  3. Step 3: Cross multiply
    245,055.13x = 338,136.39 × 153,163.58
  4. Step 4: Simplify right side
    245,055.13x = 51,790,178,329.99
  5. Step 5: Solve for x
    x = 51,790,178,329.99/245,055.13
  6. Step 6: Final answer
    x = 211,340.93

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1.5x scale

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.