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Finding the Fourth Proportional to 223,315.60, 334,519.80 and 138,816.40

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Solution

The fourth proportional to 223,315.60, 334,519.80 and 138,816.40 is: 207,942.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,315.60 : 334,519.80 = 138,816.40 : x
  2. Step 2: Convert to fraction form
    223,315.60/334,519.80 = 138,816.40/x
  3. Step 3: Cross multiply
    223,315.60x = 334,519.80 × 138,816.40
  4. Step 4: Simplify right side
    223,315.60x = 46,436,834,364.72
  5. Step 5: Solve for x
    x = 46,436,834,364.72/223,315.60
  6. Step 6: Final answer
    x = 207,942.64

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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.