Home / 293,086.40-439,629.60-135,622.40

Finding the Fourth Proportional to 293,086.40, 439,629.60 and 135,622.40

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Solution

The fourth proportional to 293,086.40, 439,629.60 and 135,622.40 is: 203,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,086.40 : 439,629.60 = 135,622.40 : x
  2. Step 2: Convert to fraction form
    293,086.40/439,629.60 = 135,622.40/x
  3. Step 3: Cross multiply
    293,086.40x = 439,629.60 × 135,622.40
  4. Step 4: Simplify right side
    293,086.40x = 59,623,621,463.04
  5. Step 5: Solve for x
    x = 59,623,621,463.04/293,086.40
  6. Step 6: Final answer
    x = 203,433.60

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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.