Home / 243,719.80-336,331.02-136,288.60

Finding the Fourth Proportional to 243,719.80, 336,331.02 and 136,288.60

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Solution

The fourth proportional to 243,719.80, 336,331.02 and 136,288.60 is: 188,076.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,719.80 : 336,331.02 = 136,288.60 : x
  2. Step 2: Convert to fraction form
    243,719.80/336,331.02 = 136,288.60/x
  3. Step 3: Cross multiply
    243,719.80x = 336,331.02 × 136,288.60
  4. Step 4: Simplify right side
    243,719.80x = 45,838,083,852.37
  5. Step 5: Solve for x
    x = 45,838,083,852.37/243,719.80
  6. Step 6: Final answer
    x = 188,076.98

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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.