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Finding the Fourth Proportional to 223,815.70, 335,723.55 and 90,700.30

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Solution

The fourth proportional to 223,815.70, 335,723.55 and 90,700.30 is: 136,050.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,815.70 : 335,723.55 = 90,700.30 : x
  2. Step 2: Convert to fraction form
    223,815.70/335,723.55 = 90,700.30/x
  3. Step 3: Cross multiply
    223,815.70x = 335,723.55 × 90,700.30
  4. Step 4: Simplify right side
    223,815.70x = 30,450,226,702.07
  5. Step 5: Solve for x
    x = 30,450,226,702.07/223,815.70
  6. Step 6: Final answer
    x = 136,050.45

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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.