Home / 285,311.66-393,741.96-157,987.25

Finding the Fourth Proportional to 285,311.66, 393,741.96 and 157,987.25

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Solution

The fourth proportional to 285,311.66, 393,741.96 and 157,987.25 is: 218,028.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,311.66 : 393,741.96 = 157,987.25 : x
  2. Step 2: Convert to fraction form
    285,311.66/393,741.96 = 157,987.25/x
  3. Step 3: Cross multiply
    285,311.66x = 393,741.96 × 157,987.25
  4. Step 4: Simplify right side
    285,311.66x = 62,206,209,861.91
  5. Step 5: Solve for x
    x = 62,206,209,861.91/285,311.66
  6. Step 6: Final answer
    x = 218,028.98

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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.