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Finding the Fourth Proportional to 377,087.46, 520,367.40 and 207,320.28

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Solution

The fourth proportional to 377,087.46, 520,367.40 and 207,320.28 is: 286,094.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,087.46 : 520,367.40 = 207,320.28 : x
  2. Step 2: Convert to fraction form
    377,087.46/520,367.40 = 207,320.28/x
  3. Step 3: Cross multiply
    377,087.46x = 520,367.40 × 207,320.28
  4. Step 4: Simplify right side
    377,087.46x = 107,882,715,070.87
  5. Step 5: Solve for x
    x = 107,882,715,070.87/377,087.46
  6. Step 6: Final answer
    x = 286,094.68

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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.