Home / 309,013.14-463,403.04-142,684.50

Finding the Fourth Proportional to 309,013.14, 463,403.04 and 142,684.50

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Solution

The fourth proportional to 309,013.14, 463,403.04 and 142,684.50 is: 213,972.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,013.14 : 463,403.04 = 142,684.50 : x
  2. Step 2: Convert to fraction form
    309,013.14/463,403.04 = 142,684.50/x
  3. Step 3: Cross multiply
    309,013.14x = 463,403.04 × 142,684.50
  4. Step 4: Simplify right side
    309,013.14x = 66,120,431,060.88
  5. Step 5: Solve for x
    x = 66,120,431,060.88/309,013.14
  6. Step 6: Final answer
    x = 213,972.88

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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.