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Finding the Fourth Proportional to 223,750.40, 335,625.60 and 215,148.80

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Solution

The fourth proportional to 223,750.40, 335,625.60 and 215,148.80 is: 322,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,750.40 : 335,625.60 = 215,148.80 : x
  2. Step 2: Convert to fraction form
    223,750.40/335,625.60 = 215,148.80/x
  3. Step 3: Cross multiply
    223,750.40x = 335,625.60 × 215,148.80
  4. Step 4: Simplify right side
    223,750.40x = 72,209,445,089.28
  5. Step 5: Solve for x
    x = 72,209,445,089.28/223,750.40
  6. Step 6: Final answer
    x = 322,723.20

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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.