Home / 542,913.21-749,221.16-301,195.80

Finding the Fourth Proportional to 542,913.21, 749,221.16 and 301,195.80

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Solution

The fourth proportional to 542,913.21, 749,221.16 and 301,195.80 is: 415,650.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,913.21 : 749,221.16 = 301,195.80 : x
  2. Step 2: Convert to fraction form
    542,913.21/749,221.16 = 301,195.80/x
  3. Step 3: Cross multiply
    542,913.21x = 749,221.16 × 301,195.80
  4. Step 4: Simplify right side
    542,913.21x = 225,662,265,157.15
  5. Step 5: Solve for x
    x = 225,662,265,157.15/542,913.21
  6. Step 6: Final answer
    x = 415,650.72

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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.