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Finding the Fourth Proportional to 377,467.52, 520,904.32 and 207,712.64

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Solution

The fourth proportional to 377,467.52, 520,904.32 and 207,712.64 is: 286,642.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,467.52 : 520,904.32 = 207,712.64 : x
  2. Step 2: Convert to fraction form
    377,467.52/520,904.32 = 207,712.64/x
  3. Step 3: Cross multiply
    377,467.52x = 520,904.32 × 207,712.64
  4. Step 4: Simplify right side
    377,467.52x = 108,198,411,494.61
  5. Step 5: Solve for x
    x = 108,198,411,494.61/377,467.52
  6. Step 6: Final answer
    x = 286,642.97

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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.