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Finding the Fourth Proportional to 343,839.90, 514,775.70 and 304,473.90

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Solution

The fourth proportional to 343,839.90, 514,775.70 and 304,473.90 is: 455,839.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,839.90 : 514,775.70 = 304,473.90 : x
  2. Step 2: Convert to fraction form
    343,839.90/514,775.70 = 304,473.90/x
  3. Step 3: Cross multiply
    343,839.90x = 514,775.70 × 304,473.90
  4. Step 4: Simplify right side
    343,839.90x = 156,735,765,004.23
  5. Step 5: Solve for x
    x = 156,735,765,004.23/343,839.90
  6. Step 6: Final answer
    x = 455,839.37

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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.