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Finding the Fourth Proportional to 377,622.66, 521,122.77 and 207,858

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Solution

The fourth proportional to 377,622.66, 521,122.77 and 207,858 is: 286,845.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,622.66 : 521,122.77 = 207,858 : x
  2. Step 2: Convert to fraction form
    377,622.66/521,122.77 = 207,858/x
  3. Step 3: Cross multiply
    377,622.66x = 521,122.77 × 207,858
  4. Step 4: Simplify right side
    377,622.66x = 108,319,536,726.66
  5. Step 5: Solve for x
    x = 108,319,536,726.66/377,622.66
  6. Step 6: Final answer
    x = 286,845.97

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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.