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Finding the Fourth Proportional to 377,851, 521,426.46 and 208,086.52

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Solution

The fourth proportional to 377,851, 521,426.46 and 208,086.52 is: 287,155.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,851 : 521,426.46 = 208,086.52 : x
  2. Step 2: Convert to fraction form
    377,851/521,426.46 = 208,086.52/x
  3. Step 3: Cross multiply
    377,851x = 521,426.46 × 208,086.52
  4. Step 4: Simplify right side
    377,851x = 108,501,817,497.32
  5. Step 5: Solve for x
    x = 108,501,817,497.32/377,851
  6. Step 6: Final answer
    x = 287,155.04

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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.