Home / 285,216.24-393,600.32-157,889.04

Finding the Fourth Proportional to 285,216.24, 393,600.32 and 157,889.04

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Solution

The fourth proportional to 285,216.24, 393,600.32 and 157,889.04 is: 217,887.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,216.24 : 393,600.32 = 157,889.04 : x
  2. Step 2: Convert to fraction form
    285,216.24/393,600.32 = 157,889.04/x
  3. Step 3: Cross multiply
    285,216.24x = 393,600.32 × 157,889.04
  4. Step 4: Simplify right side
    285,216.24x = 62,145,176,668.49
  5. Step 5: Solve for x
    x = 62,145,176,668.49/285,216.24
  6. Step 6: Final answer
    x = 217,887.93

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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.