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Finding the Fourth Proportional to 377,807.62, 521,355.81 and 208,010.02

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Solution

The fourth proportional to 377,807.62, 521,355.81 and 208,010.02 is: 287,043.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,807.62 : 521,355.81 = 208,010.02 : x
  2. Step 2: Convert to fraction form
    377,807.62/521,355.81 = 208,010.02/x
  3. Step 3: Cross multiply
    377,807.62x = 521,355.81 × 208,010.02
  4. Step 4: Simplify right side
    377,807.62x = 108,447,232,465.22
  5. Step 5: Solve for x
    x = 108,447,232,465.22/377,807.62
  6. Step 6: Final answer
    x = 287,043.53

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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.