Home / 209,352.23-313,909.42-142,872.89

Finding the Fourth Proportional to 209,352.23, 313,909.42 and 142,872.89

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Solution

The fourth proportional to 209,352.23, 313,909.42 and 142,872.89 is: 214,228.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,352.23 : 313,909.42 = 142,872.89 : x
  2. Step 2: Convert to fraction form
    209,352.23/313,909.42 = 142,872.89/x
  3. Step 3: Cross multiply
    209,352.23x = 313,909.42 × 142,872.89
  4. Step 4: Simplify right side
    209,352.23x = 44,849,145,319.26
  5. Step 5: Solve for x
    x = 44,849,145,319.26/209,352.23
  6. Step 6: Final answer
    x = 214,228.18

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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.