Home / 209,288.16-313,996.98-72,522.90

Finding the Fourth Proportional to 209,288.16, 313,996.98 and 72,522.90

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Solution

The fourth proportional to 209,288.16, 313,996.98 and 72,522.90 is: 108,806.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,288.16 : 313,996.98 = 72,522.90 : x
  2. Step 2: Convert to fraction form
    209,288.16/313,996.98 = 72,522.90/x
  3. Step 3: Cross multiply
    209,288.16x = 313,996.98 × 72,522.90
  4. Step 4: Simplify right side
    209,288.16x = 22,771,971,580.84
  5. Step 5: Solve for x
    x = 22,771,971,580.84/209,288.16
  6. Step 6: Final answer
    x = 108,806.78

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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.