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Finding the Fourth Proportional to 273,878.58, 378,435.33 and 210,761.76

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Solution

The fourth proportional to 273,878.58, 378,435.33 and 210,761.76 is: 291,222.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,878.58 : 378,435.33 = 210,761.76 : x
  2. Step 2: Convert to fraction form
    273,878.58/378,435.33 = 210,761.76/x
  3. Step 3: Cross multiply
    273,878.58x = 378,435.33 × 210,761.76
  4. Step 4: Simplify right side
    273,878.58x = 79,759,696,196.98
  5. Step 5: Solve for x
    x = 79,759,696,196.98/273,878.58
  6. Step 6: Final answer
    x = 291,222.83

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1.5x scale

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.