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Finding the Fourth Proportional to 209,604.29, 313,440.75 and 155,670.84

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Solution

The fourth proportional to 209,604.29, 313,440.75 and 155,670.84 is: 232,789.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,604.29 : 313,440.75 = 155,670.84 : x
  2. Step 2: Convert to fraction form
    209,604.29/313,440.75 = 155,670.84/x
  3. Step 3: Cross multiply
    209,604.29x = 313,440.75 × 155,670.84
  4. Step 4: Simplify right side
    209,604.29x = 48,793,584,842.73
  5. Step 5: Solve for x
    x = 48,793,584,842.73/209,604.29
  6. Step 6: Final answer
    x = 232,789.06

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1.5x scale

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.