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Finding the Fourth Proportional to 343,511.95, 515,018.81 and 230,912.89

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Solution

The fourth proportional to 343,511.95, 515,018.81 and 230,912.89 is: 346,201.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,511.95 : 515,018.81 = 230,912.89 : x
  2. Step 2: Convert to fraction form
    343,511.95/515,018.81 = 230,912.89/x
  3. Step 3: Cross multiply
    343,511.95x = 515,018.81 × 230,912.89
  4. Step 4: Simplify right side
    343,511.95x = 118,924,478,091.80
  5. Step 5: Solve for x
    x = 118,924,478,091.80/343,511.95
  6. Step 6: Final answer
    x = 346,201.87

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1.5x scale

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.