Home / 236,216.48-325,980.65-128,787.29

Finding the Fourth Proportional to 236,216.48, 325,980.65 and 128,787.29

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Solution

The fourth proportional to 236,216.48, 325,980.65 and 128,787.29 is: 177,727.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,216.48 : 325,980.65 = 128,787.29 : x
  2. Step 2: Convert to fraction form
    236,216.48/325,980.65 = 128,787.29/x
  3. Step 3: Cross multiply
    236,216.48x = 325,980.65 × 128,787.29
  4. Step 4: Simplify right side
    236,216.48x = 41,982,164,505.94
  5. Step 5: Solve for x
    x = 41,982,164,505.94/236,216.48
  6. Step 6: Final answer
    x = 177,727.50

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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.