Home / 238,784.70-329,569.74-136,878.48

Finding the Fourth Proportional to 238,784.70, 329,569.74 and 136,878.48

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Solution

The fourth proportional to 238,784.70, 329,569.74 and 136,878.48 is: 188,919.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,784.70 : 329,569.74 = 136,878.48 : x
  2. Step 2: Convert to fraction form
    238,784.70/329,569.74 = 136,878.48/x
  3. Step 3: Cross multiply
    238,784.70x = 329,569.74 × 136,878.48
  4. Step 4: Simplify right side
    238,784.70x = 45,111,005,065.20
  5. Step 5: Solve for x
    x = 45,111,005,065.20/238,784.70
  6. Step 6: Final answer
    x = 188,919.16

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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.