Home / 285,249.88-393,644.83-157,933.67

Finding the Fourth Proportional to 285,249.88, 393,644.83 and 157,933.67

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Solution

The fourth proportional to 285,249.88, 393,644.83 and 157,933.67 is: 217,948.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,249.88 : 393,644.83 = 157,933.67 : x
  2. Step 2: Convert to fraction form
    285,249.88/393,644.83 = 157,933.67/x
  3. Step 3: Cross multiply
    285,249.88x = 393,644.83 × 157,933.67
  4. Step 4: Simplify right side
    285,249.88x = 62,169,772,678.43
  5. Step 5: Solve for x
    x = 62,169,772,678.43/285,249.88
  6. Step 6: Final answer
    x = 217,948.46

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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.