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Finding the Fourth Proportional to 243,223.54, 334,905.40 and 220,414.07

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Solution

The fourth proportional to 243,223.54, 334,905.40 and 220,414.07 is: 303,498.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,223.54 : 334,905.40 = 220,414.07 : x
  2. Step 2: Convert to fraction form
    243,223.54/334,905.40 = 220,414.07/x
  3. Step 3: Cross multiply
    243,223.54x = 334,905.40 × 220,414.07
  4. Step 4: Simplify right side
    243,223.54x = 73,817,863,391.76
  5. Step 5: Solve for x
    x = 73,817,863,391.76/243,223.54
  6. Step 6: Final answer
    x = 303,498.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.