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Finding the Fourth Proportional to 223,347.60, 334,729.80 and 90,118.80

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Solution

The fourth proportional to 223,347.60, 334,729.80 and 90,118.80 is: 135,060.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,347.60 : 334,729.80 = 90,118.80 : x
  2. Step 2: Convert to fraction form
    223,347.60/334,729.80 = 90,118.80/x
  3. Step 3: Cross multiply
    223,347.60x = 334,729.80 × 90,118.80
  4. Step 4: Simplify right side
    223,347.60x = 30,165,447,900.24
  5. Step 5: Solve for x
    x = 30,165,447,900.24/223,347.60
  6. Step 6: Final answer
    x = 135,060.54

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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.