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Finding the Fourth Proportional to 377,418.44, 520,830 and 207,655.40

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Solution

The fourth proportional to 377,418.44, 520,830 and 207,655.40 is: 286,560.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,418.44 : 520,830 = 207,655.40 : x
  2. Step 2: Convert to fraction form
    377,418.44/520,830 = 207,655.40/x
  3. Step 3: Cross multiply
    377,418.44x = 520,830 × 207,655.40
  4. Step 4: Simplify right side
    377,418.44x = 108,153,161,982
  5. Step 5: Solve for x
    x = 108,153,161,982/377,418.44
  6. Step 6: Final answer
    x = 286,560.35

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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.