Home / 283,743.86-391,563.95-156,419.45

Finding the Fourth Proportional to 283,743.86, 391,563.95 and 156,419.45

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Solution

The fourth proportional to 283,743.86, 391,563.95 and 156,419.45 is: 215,857.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,743.86 : 391,563.95 = 156,419.45 : x
  2. Step 2: Convert to fraction form
    283,743.86/391,563.95 = 156,419.45/x
  3. Step 3: Cross multiply
    283,743.86x = 391,563.95 × 156,419.45
  4. Step 4: Simplify right side
    283,743.86x = 61,248,214,958.91
  5. Step 5: Solve for x
    x = 61,248,214,958.91/283,743.86
  6. Step 6: Final answer
    x = 215,857.41

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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.