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Finding the Fourth Proportional to 384,890.90, 577,336.35 and 118,627.70

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Solution

The fourth proportional to 384,890.90, 577,336.35 and 118,627.70 is: 177,941.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,890.90 : 577,336.35 = 118,627.70 : x
  2. Step 2: Convert to fraction form
    384,890.90/577,336.35 = 118,627.70/x
  3. Step 3: Cross multiply
    384,890.90x = 577,336.35 × 118,627.70
  4. Step 4: Simplify right side
    384,890.90x = 68,488,083,326.90
  5. Step 5: Solve for x
    x = 68,488,083,326.90/384,890.90
  6. Step 6: Final answer
    x = 177,941.55

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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.