Home / 279,435.38-385,620.86-152,111.93

Finding the Fourth Proportional to 279,435.38, 385,620.86 and 152,111.93

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Solution

The fourth proportional to 279,435.38, 385,620.86 and 152,111.93 is: 209,914.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,435.38 : 385,620.86 = 152,111.93 : x
  2. Step 2: Convert to fraction form
    279,435.38/385,620.86 = 152,111.93/x
  3. Step 3: Cross multiply
    279,435.38x = 385,620.86 × 152,111.93
  4. Step 4: Simplify right side
    279,435.38x = 58,657,531,715.04
  5. Step 5: Solve for x
    x = 58,657,531,715.04/279,435.38
  6. Step 6: Final answer
    x = 209,914.48

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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.