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Finding the Fourth Proportional to 555,466.45, 833,407.21 and 218,741.86

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Solution

The fourth proportional to 555,466.45, 833,407.21 and 218,741.86 is: 328,194.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,466.45 : 833,407.21 = 218,741.86 : x
  2. Step 2: Convert to fraction form
    555,466.45/833,407.21 = 218,741.86/x
  3. Step 3: Cross multiply
    555,466.45x = 833,407.21 × 218,741.86
  4. Step 4: Simplify right side
    555,466.45x = 182,301,043,520.60
  5. Step 5: Solve for x
    x = 182,301,043,520.60/555,466.45
  6. Step 6: Final answer
    x = 328,194.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.