Home / 245,141.91-338,300.42-136,256.45

Finding the Fourth Proportional to 245,141.91, 338,300.42 and 136,256.45

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Solution

The fourth proportional to 245,141.91, 338,300.42 and 136,256.45 is: 188,036.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,141.91 : 338,300.42 = 136,256.45 : x
  2. Step 2: Convert to fraction form
    245,141.91/338,300.42 = 136,256.45/x
  3. Step 3: Cross multiply
    245,141.91x = 338,300.42 × 136,256.45
  4. Step 4: Simplify right side
    245,141.91x = 46,095,611,889.92
  5. Step 5: Solve for x
    x = 46,095,611,889.92/245,141.91
  6. Step 6: Final answer
    x = 188,036.44

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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.