Home / 286,750.82-395,722.55-157,681.11

Finding the Fourth Proportional to 286,750.82, 395,722.55 and 157,681.11

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Solution

The fourth proportional to 286,750.82, 395,722.55 and 157,681.11 is: 217,603.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,750.82 : 395,722.55 = 157,681.11 : x
  2. Step 2: Convert to fraction form
    286,750.82/395,722.55 = 157,681.11/x
  3. Step 3: Cross multiply
    286,750.82x = 395,722.55 × 157,681.11
  4. Step 4: Simplify right side
    286,750.82x = 62,397,970,936.03
  5. Step 5: Solve for x
    x = 62,397,970,936.03/286,750.82
  6. Step 6: Final answer
    x = 217,603.46

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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.