Home / 268,421.44-402,675.84-99,942.40

Finding the Fourth Proportional to 268,421.44, 402,675.84 and 99,942.40

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Solution

The fourth proportional to 268,421.44, 402,675.84 and 99,942.40 is: 149,929.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,421.44 : 402,675.84 = 99,942.40 : x
  2. Step 2: Convert to fraction form
    268,421.44/402,675.84 = 99,942.40/x
  3. Step 3: Cross multiply
    268,421.44x = 402,675.84 × 99,942.40
  4. Step 4: Simplify right side
    268,421.44x = 40,244,389,871.62
  5. Step 5: Solve for x
    x = 40,244,389,871.62/268,421.44
  6. Step 6: Final answer
    x = 149,929.86

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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.