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Finding the Fourth Proportional to 334,512.20, 501,768.30 and 318,960.20

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Solution

The fourth proportional to 334,512.20, 501,768.30 and 318,960.20 is: 478,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,512.20 : 501,768.30 = 318,960.20 : x
  2. Step 2: Convert to fraction form
    334,512.20/501,768.30 = 318,960.20/x
  3. Step 3: Cross multiply
    334,512.20x = 501,768.30 × 318,960.20
  4. Step 4: Simplify right side
    334,512.20x = 160,044,117,321.66
  5. Step 5: Solve for x
    x = 160,044,117,321.66/334,512.20
  6. Step 6: Final answer
    x = 478,440.30

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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.