Home / 239,261.48-330,188.32-137,305.60

Finding the Fourth Proportional to 239,261.48, 330,188.32 and 137,305.60

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Solution

The fourth proportional to 239,261.48, 330,188.32 and 137,305.60 is: 189,486.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,261.48 : 330,188.32 = 137,305.60 : x
  2. Step 2: Convert to fraction form
    239,261.48/330,188.32 = 137,305.60/x
  3. Step 3: Cross multiply
    239,261.48x = 330,188.32 × 137,305.60
  4. Step 4: Simplify right side
    239,261.48x = 45,336,705,390.59
  5. Step 5: Solve for x
    x = 45,336,705,390.59/239,261.48
  6. Step 6: Final answer
    x = 189,486.02

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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.