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Finding the Fourth Proportional to 377,398.44, 520,802.46 and 207,635.40

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Solution

The fourth proportional to 377,398.44, 520,802.46 and 207,635.40 is: 286,532.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,398.44 : 520,802.46 = 207,635.40 : x
  2. Step 2: Convert to fraction form
    377,398.44/520,802.46 = 207,635.40/x
  3. Step 3: Cross multiply
    377,398.44x = 520,802.46 × 207,635.40
  4. Step 4: Simplify right side
    377,398.44x = 108,137,027,103.08
  5. Step 5: Solve for x
    x = 108,137,027,103.08/377,398.44
  6. Step 6: Final answer
    x = 286,532.79

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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.