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Finding the Fourth Proportional to 223,537.80, 335,306.70 and 211,290.60

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Solution

The fourth proportional to 223,537.80, 335,306.70 and 211,290.60 is: 316,935.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,537.80 : 335,306.70 = 211,290.60 : x
  2. Step 2: Convert to fraction form
    223,537.80/335,306.70 = 211,290.60/x
  3. Step 3: Cross multiply
    223,537.80x = 335,306.70 × 211,290.60
  4. Step 4: Simplify right side
    223,537.80x = 70,847,153,827.02
  5. Step 5: Solve for x
    x = 70,847,153,827.02/223,537.80
  6. Step 6: Final answer
    x = 316,935.90

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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.