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Finding the Fourth Proportional to 215,203.98, 323,008.22 and 112,694.89

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Solution

The fourth proportional to 215,203.98, 323,008.22 and 112,694.89 is: 169,148.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,203.98 : 323,008.22 = 112,694.89 : x
  2. Step 2: Convert to fraction form
    215,203.98/323,008.22 = 112,694.89/x
  3. Step 3: Cross multiply
    215,203.98x = 323,008.22 × 112,694.89
  4. Step 4: Simplify right side
    215,203.98x = 36,401,373,643.48
  5. Step 5: Solve for x
    x = 36,401,373,643.48/215,203.98
  6. Step 6: Final answer
    x = 169,148.24

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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.