Home / 285,007.20-393,275.36-164,187.60

Finding the Fourth Proportional to 285,007.20, 393,275.36 and 164,187.60

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Solution

The fourth proportional to 285,007.20, 393,275.36 and 164,187.60 is: 226,558.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,007.20 : 393,275.36 = 164,187.60 : x
  2. Step 2: Convert to fraction form
    285,007.20/393,275.36 = 164,187.60/x
  3. Step 3: Cross multiply
    285,007.20x = 393,275.36 × 164,187.60
  4. Step 4: Simplify right side
    285,007.20x = 64,570,937,497.54
  5. Step 5: Solve for x
    x = 64,570,937,497.54/285,007.20
  6. Step 6: Final answer
    x = 226,558.97

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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.