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Finding the Fourth Proportional to 304,885.80, 457,328.70 and 262,895.40

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Solution

The fourth proportional to 304,885.80, 457,328.70 and 262,895.40 is: 394,343.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,885.80 : 457,328.70 = 262,895.40 : x
  2. Step 2: Convert to fraction form
    304,885.80/457,328.70 = 262,895.40/x
  3. Step 3: Cross multiply
    304,885.80x = 457,328.70 × 262,895.40
  4. Step 4: Simplify right side
    304,885.80x = 120,229,611,517.98
  5. Step 5: Solve for x
    x = 120,229,611,517.98/304,885.80
  6. Step 6: Final answer
    x = 394,343.10

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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.