Home / 285,457.32-393,925.68-158,133.96

Finding the Fourth Proportional to 285,457.32, 393,925.68 and 158,133.96

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Solution

The fourth proportional to 285,457.32, 393,925.68 and 158,133.96 is: 218,221.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,457.32 : 393,925.68 = 158,133.96 : x
  2. Step 2: Convert to fraction form
    285,457.32/393,925.68 = 158,133.96/x
  3. Step 3: Cross multiply
    285,457.32x = 393,925.68 × 158,133.96
  4. Step 4: Simplify right side
    285,457.32x = 62,293,027,724.09
  5. Step 5: Solve for x
    x = 62,293,027,724.09/285,457.32
  6. Step 6: Final answer
    x = 218,221.86

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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.