Home / 252,942.79-349,061.96-138,221.42

Finding the Fourth Proportional to 252,942.79, 349,061.96 and 138,221.42

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Solution

The fourth proportional to 252,942.79, 349,061.96 and 138,221.42 is: 190,746.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,942.79 : 349,061.96 = 138,221.42 : x
  2. Step 2: Convert to fraction form
    252,942.79/349,061.96 = 138,221.42/x
  3. Step 3: Cross multiply
    252,942.79x = 349,061.96 × 138,221.42
  4. Step 4: Simplify right side
    252,942.79x = 48,247,839,779.18
  5. Step 5: Solve for x
    x = 48,247,839,779.18/252,942.79
  6. Step 6: Final answer
    x = 190,746.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.