Home / 285,311.64-393,741.93-157,987.23

Finding the Fourth Proportional to 285,311.64, 393,741.93 and 157,987.23

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Solution

The fourth proportional to 285,311.64, 393,741.93 and 157,987.23 is: 218,028.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,311.64 : 393,741.93 = 157,987.23 : x
  2. Step 2: Convert to fraction form
    285,311.64/393,741.93 = 157,987.23/x
  3. Step 3: Cross multiply
    285,311.64x = 393,741.93 × 157,987.23
  4. Step 4: Simplify right side
    285,311.64x = 62,206,196,855.55
  5. Step 5: Solve for x
    x = 62,206,196,855.55/285,311.64
  6. Step 6: Final answer
    x = 218,028.95

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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.