Home / 283,742.88-391,566.36-156,415.68

Finding the Fourth Proportional to 283,742.88, 391,566.36 and 156,415.68

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Solution

The fourth proportional to 283,742.88, 391,566.36 and 156,415.68 is: 215,854.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,742.88 : 391,566.36 = 156,415.68 : x
  2. Step 2: Convert to fraction form
    283,742.88/391,566.36 = 156,415.68/x
  3. Step 3: Cross multiply
    283,742.88x = 391,566.36 × 156,415.68
  4. Step 4: Simplify right side
    283,742.88x = 61,247,118,464.52
  5. Step 5: Solve for x
    x = 61,247,118,464.52/283,742.88
  6. Step 6: Final answer
    x = 215,854.29

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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.