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Finding the Fourth Proportional to 223,359.60, 334,747.80 and 90,130.80

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Solution

The fourth proportional to 223,359.60, 334,747.80 and 90,130.80 is: 135,078.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,359.60 : 334,747.80 = 90,130.80 : x
  2. Step 2: Convert to fraction form
    223,359.60/334,747.80 = 90,130.80/x
  3. Step 3: Cross multiply
    223,359.60x = 334,747.80 × 90,130.80
  4. Step 4: Simplify right side
    223,359.60x = 30,171,087,012.24
  5. Step 5: Solve for x
    x = 30,171,087,012.24/223,359.60
  6. Step 6: Final answer
    x = 135,078.53

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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.