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Finding the Fourth Proportional to 636,244.02, 954,341.10 and 215,519.88

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Solution

The fourth proportional to 636,244.02, 954,341.10 and 215,519.88 is: 323,271.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,244.02 : 954,341.10 = 215,519.88 : x
  2. Step 2: Convert to fraction form
    636,244.02/954,341.10 = 215,519.88/x
  3. Step 3: Cross multiply
    636,244.02x = 954,341.10 × 215,519.88
  4. Step 4: Simplify right side
    636,244.02x = 205,679,479,351.07
  5. Step 5: Solve for x
    x = 205,679,479,351.07/636,244.02
  6. Step 6: Final answer
    x = 323,271.38

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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.