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Finding the Fourth Proportional to 343,497.90, 515,101.05 and 166,059.30

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Solution

The fourth proportional to 343,497.90, 515,101.05 and 166,059.30 is: 249,018.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,497.90 : 515,101.05 = 166,059.30 : x
  2. Step 2: Convert to fraction form
    343,497.90/515,101.05 = 166,059.30/x
  3. Step 3: Cross multiply
    343,497.90x = 515,101.05 × 166,059.30
  4. Step 4: Simplify right side
    343,497.90x = 85,537,319,792.27
  5. Step 5: Solve for x
    x = 85,537,319,792.27/343,497.90
  6. Step 6: Final answer
    x = 249,018.47

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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.