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Finding the Fourth Proportional to 377,551.10, 521,015.12 and 207,785.22

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Solution

The fourth proportional to 377,551.10, 521,015.12 and 207,785.22 is: 286,740.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,551.10 : 521,015.12 = 207,785.22 : x
  2. Step 2: Convert to fraction form
    377,551.10/521,015.12 = 207,785.22/x
  3. Step 3: Cross multiply
    377,551.10x = 521,015.12 × 207,785.22
  4. Step 4: Simplify right side
    377,551.10x = 108,259,241,332.53
  5. Step 5: Solve for x
    x = 108,259,241,332.53/377,551.10
  6. Step 6: Final answer
    x = 286,740.63

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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.