Home / 285,435.20-393,900.96-158,108.16

Finding the Fourth Proportional to 285,435.20, 393,900.96 and 158,108.16

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Solution

The fourth proportional to 285,435.20, 393,900.96 and 158,108.16 is: 218,189.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,435.20 : 393,900.96 = 158,108.16 : x
  2. Step 2: Convert to fraction form
    285,435.20/393,900.96 = 158,108.16/x
  3. Step 3: Cross multiply
    285,435.20x = 393,900.96 × 158,108.16
  4. Step 4: Simplify right side
    285,435.20x = 62,278,956,007.83
  5. Step 5: Solve for x
    x = 62,278,956,007.83/285,435.20
  6. Step 6: Final answer
    x = 218,189.47

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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.