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Finding the Fourth Proportional to 377,164.76, 520,465.65 and 207,399.02

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Solution

The fourth proportional to 377,164.76, 520,465.65 and 207,399.02 is: 286,198.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,164.76 : 520,465.65 = 207,399.02 : x
  2. Step 2: Convert to fraction form
    377,164.76/520,465.65 = 207,399.02/x
  3. Step 3: Cross multiply
    377,164.76x = 520,465.65 × 207,399.02
  4. Step 4: Simplify right side
    377,164.76x = 107,944,065,753.66
  5. Step 5: Solve for x
    x = 107,944,065,753.66/377,164.76
  6. Step 6: Final answer
    x = 286,198.70

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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.