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Finding the Fourth Proportional to 377,156.88, 520,484.40 and 207,400.32

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Solution

The fourth proportional to 377,156.88, 520,484.40 and 207,400.32 is: 286,216.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,156.88 : 520,484.40 = 207,400.32 : x
  2. Step 2: Convert to fraction form
    377,156.88/520,484.40 = 207,400.32/x
  3. Step 3: Cross multiply
    377,156.88x = 520,484.40 × 207,400.32
  4. Step 4: Simplify right side
    377,156.88x = 107,948,631,115.01
  5. Step 5: Solve for x
    x = 107,948,631,115.01/377,156.88
  6. Step 6: Final answer
    x = 286,216.79

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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.