Home / 259,106.78-387,782.32-159,330.17

Finding the Fourth Proportional to 259,106.78, 387,782.32 and 159,330.17

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Solution

The fourth proportional to 259,106.78, 387,782.32 and 159,330.17 is: 238,455.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,106.78 : 387,782.32 = 159,330.17 : x
  2. Step 2: Convert to fraction form
    259,106.78/387,782.32 = 159,330.17/x
  3. Step 3: Cross multiply
    259,106.78x = 387,782.32 × 159,330.17
  4. Step 4: Simplify right side
    259,106.78x = 61,785,422,968.59
  5. Step 5: Solve for x
    x = 61,785,422,968.59/259,106.78
  6. Step 6: Final answer
    x = 238,455.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.