Home / 209,403.61-313,986.06-142,924.21

Finding the Fourth Proportional to 209,403.61, 313,986.06 and 142,924.21

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Solution

The fourth proportional to 209,403.61, 313,986.06 and 142,924.21 is: 214,304.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,403.61 : 313,986.06 = 142,924.21 : x
  2. Step 2: Convert to fraction form
    209,403.61/313,986.06 = 142,924.21/x
  3. Step 3: Cross multiply
    209,403.61x = 313,986.06 × 142,924.21
  4. Step 4: Simplify right side
    209,403.61x = 44,876,209,576.51
  5. Step 5: Solve for x
    x = 44,876,209,576.51/209,403.61
  6. Step 6: Final answer
    x = 214,304.85

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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.