Home / 215,664.80-323,439.60-65,904.80

Finding the Fourth Proportional to 215,664.80, 323,439.60 and 65,904.80

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Solution

The fourth proportional to 215,664.80, 323,439.60 and 65,904.80 is: 98,839.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,664.80 : 323,439.60 = 65,904.80 : x
  2. Step 2: Convert to fraction form
    215,664.80/323,439.60 = 65,904.80/x
  3. Step 3: Cross multiply
    215,664.80x = 323,439.60 × 65,904.80
  4. Step 4: Simplify right side
    215,664.80x = 21,316,222,150.08
  5. Step 5: Solve for x
    x = 21,316,222,150.08/215,664.80
  6. Step 6: Final answer
    x = 98,839.60

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1.5x scale

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.