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Finding the Fourth Proportional to 343,869.90, 514,820.70 and 304,503.90

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Solution

The fourth proportional to 343,869.90, 514,820.70 and 304,503.90 is: 455,884.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,869.90 : 514,820.70 = 304,503.90 : x
  2. Step 2: Convert to fraction form
    343,869.90/514,820.70 = 304,503.90/x
  3. Step 3: Cross multiply
    343,869.90x = 514,820.70 × 304,503.90
  4. Step 4: Simplify right side
    343,869.90x = 156,764,910,950.73
  5. Step 5: Solve for x
    x = 156,764,910,950.73/343,869.90
  6. Step 6: Final answer
    x = 455,884.36

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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.