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Finding the Fourth Proportional to 463,165.50, 639,168.42 and 251,197.50

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Solution

The fourth proportional to 463,165.50, 639,168.42 and 251,197.50 is: 346,652.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,165.50 : 639,168.42 = 251,197.50 : x
  2. Step 2: Convert to fraction form
    463,165.50/639,168.42 = 251,197.50/x
  3. Step 3: Cross multiply
    463,165.50x = 639,168.42 × 251,197.50
  4. Step 4: Simplify right side
    463,165.50x = 160,557,509,182.95
  5. Step 5: Solve for x
    x = 160,557,509,182.95/463,165.50
  6. Step 6: Final answer
    x = 346,652.57

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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.