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Finding the Fourth Proportional to 318,999.46, 440,217.09 and 175,756.18

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Solution

The fourth proportional to 318,999.46, 440,217.09 and 175,756.18 is: 242,542.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,999.46 : 440,217.09 = 175,756.18 : x
  2. Step 2: Convert to fraction form
    318,999.46/440,217.09 = 175,756.18/x
  3. Step 3: Cross multiply
    318,999.46x = 440,217.09 × 175,756.18
  4. Step 4: Simplify right side
    318,999.46x = 77,370,874,109.12
  5. Step 5: Solve for x
    x = 77,370,874,109.12/318,999.46
  6. Step 6: Final answer
    x = 242,542.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.