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Finding the Fourth Proportional to 339,543.90, 468,436.20 and 218,755.62

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Solution

The fourth proportional to 339,543.90, 468,436.20 and 218,755.62 is: 301,796.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,543.90 : 468,436.20 = 218,755.62 : x
  2. Step 2: Convert to fraction form
    339,543.90/468,436.20 = 218,755.62/x
  3. Step 3: Cross multiply
    339,543.90x = 468,436.20 × 218,755.62
  4. Step 4: Simplify right side
    339,543.90x = 102,473,050,541.11
  5. Step 5: Solve for x
    x = 102,473,050,541.11/339,543.90
  6. Step 6: Final answer
    x = 301,796.18

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1.5x scale

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.