Home / 285,238.45-393,614.07-156,152.19

Finding the Fourth Proportional to 285,238.45, 393,614.07 and 156,152.19

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Solution

The fourth proportional to 285,238.45, 393,614.07 and 156,152.19 is: 215,481.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,238.45 : 393,614.07 = 156,152.19 : x
  2. Step 2: Convert to fraction form
    285,238.45/393,614.07 = 156,152.19/x
  3. Step 3: Cross multiply
    285,238.45x = 393,614.07 × 156,152.19
  4. Step 4: Simplify right side
    285,238.45x = 61,463,699,045.31
  5. Step 5: Solve for x
    x = 61,463,699,045.31/285,238.45
  6. Step 6: Final answer
    x = 215,481.82

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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.