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Finding the Fourth Proportional to 304,427.40, 456,641.10 and 220,446.60

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Solution

The fourth proportional to 304,427.40, 456,641.10 and 220,446.60 is: 330,669.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,427.40 : 456,641.10 = 220,446.60 : x
  2. Step 2: Convert to fraction form
    304,427.40/456,641.10 = 220,446.60/x
  3. Step 3: Cross multiply
    304,427.40x = 456,641.10 × 220,446.60
  4. Step 4: Simplify right side
    304,427.40x = 100,664,977,915.26
  5. Step 5: Solve for x
    x = 100,664,977,915.26/304,427.40
  6. Step 6: Final answer
    x = 330,669.90

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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.