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Finding the Fourth Proportional to 221,827.80, 333,000.90 and 220,272.60

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Solution

The fourth proportional to 221,827.80, 333,000.90 and 220,272.60 is: 330,666.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,827.80 : 333,000.90 = 220,272.60 : x
  2. Step 2: Convert to fraction form
    221,827.80/333,000.90 = 220,272.60/x
  3. Step 3: Cross multiply
    221,827.80x = 333,000.90 × 220,272.60
  4. Step 4: Simplify right side
    221,827.80x = 73,350,974,045.34
  5. Step 5: Solve for x
    x = 73,350,974,045.34/221,827.80
  6. Step 6: Final answer
    x = 330,666.28

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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.