Home / 285,255.36-393,652.43-156,201.98

Finding the Fourth Proportional to 285,255.36, 393,652.43 and 156,201.98

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Solution

The fourth proportional to 285,255.36, 393,652.43 and 156,201.98 is: 215,558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,255.36 : 393,652.43 = 156,201.98 : x
  2. Step 2: Convert to fraction form
    285,255.36/393,652.43 = 156,201.98/x
  3. Step 3: Cross multiply
    285,255.36x = 393,652.43 × 156,201.98
  4. Step 4: Simplify right side
    285,255.36x = 61,489,286,248.54
  5. Step 5: Solve for x
    x = 61,489,286,248.54/285,255.36
  6. Step 6: Final answer
    x = 215,558.74

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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.