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Finding the Fourth Proportional to 277,281.60, 415,922.40 and 220,200.90

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Solution

The fourth proportional to 277,281.60, 415,922.40 and 220,200.90 is: 330,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,281.60 : 415,922.40 = 220,200.90 : x
  2. Step 2: Convert to fraction form
    277,281.60/415,922.40 = 220,200.90/x
  3. Step 3: Cross multiply
    277,281.60x = 415,922.40 × 220,200.90
  4. Step 4: Simplify right side
    277,281.60x = 91,586,486,810.16
  5. Step 5: Solve for x
    x = 91,586,486,810.16/277,281.60
  6. Step 6: Final answer
    x = 330,301.35

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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.