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Finding the Fourth Proportional to 209,281.80, 313,404.30 and 167,809.80

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Solution

The fourth proportional to 209,281.80, 313,404.30 and 167,809.80 is: 251,299.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,281.80 : 313,404.30 = 167,809.80 : x
  2. Step 2: Convert to fraction form
    209,281.80/313,404.30 = 167,809.80/x
  3. Step 3: Cross multiply
    209,281.80x = 313,404.30 × 167,809.80
  4. Step 4: Simplify right side
    209,281.80x = 52,592,312,902.14
  5. Step 5: Solve for x
    x = 52,592,312,902.14/209,281.80
  6. Step 6: Final answer
    x = 251,299.03

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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.