Home / 286,637.20-395,564.38-157,581.11

Finding the Fourth Proportional to 286,637.20, 395,564.38 and 157,581.11

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Solution

The fourth proportional to 286,637.20, 395,564.38 and 157,581.11 is: 217,464.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,637.20 : 395,564.38 = 157,581.11 : x
  2. Step 2: Convert to fraction form
    286,637.20/395,564.38 = 157,581.11/x
  3. Step 3: Cross multiply
    286,637.20x = 395,564.38 × 157,581.11
  4. Step 4: Simplify right side
    286,637.20x = 62,333,474,671.82
  5. Step 5: Solve for x
    x = 62,333,474,671.82/286,637.20
  6. Step 6: Final answer
    x = 217,464.71

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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.