Home / 257,985.84-386,584.20-108,144.42

Finding the Fourth Proportional to 257,985.84, 386,584.20 and 108,144.42

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Solution

The fourth proportional to 257,985.84, 386,584.20 and 108,144.42 is: 162,051.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,985.84 : 386,584.20 = 108,144.42 : x
  2. Step 2: Convert to fraction form
    257,985.84/386,584.20 = 108,144.42/x
  3. Step 3: Cross multiply
    257,985.84x = 386,584.20 × 108,144.42
  4. Step 4: Simplify right side
    257,985.84x = 41,806,924,090.16
  5. Step 5: Solve for x
    x = 41,806,924,090.16/257,985.84
  6. Step 6: Final answer
    x = 162,051.24

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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.