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Finding the Fourth Proportional to 223,653.90, 335,221.65 and 90,468.30

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Solution

The fourth proportional to 223,653.90, 335,221.65 and 90,468.30 is: 135,597.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,653.90 : 335,221.65 = 90,468.30 : x
  2. Step 2: Convert to fraction form
    223,653.90/335,221.65 = 90,468.30/x
  3. Step 3: Cross multiply
    223,653.90x = 335,221.65 × 90,468.30
  4. Step 4: Simplify right side
    223,653.90x = 30,326,932,798.70
  5. Step 5: Solve for x
    x = 30,326,932,798.70/223,653.90
  6. Step 6: Final answer
    x = 135,597.60

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1.5x scale

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.