Home / 258,241.82-386,529.45-133,411.10

Finding the Fourth Proportional to 258,241.82, 386,529.45 and 133,411.10

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Solution

The fourth proportional to 258,241.82, 386,529.45 and 133,411.10 is: 199,686.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,241.82 : 386,529.45 = 133,411.10 : x
  2. Step 2: Convert to fraction form
    258,241.82/386,529.45 = 133,411.10/x
  3. Step 3: Cross multiply
    258,241.82x = 386,529.45 × 133,411.10
  4. Step 4: Simplify right side
    258,241.82x = 51,567,319,106.90
  5. Step 5: Solve for x
    x = 51,567,319,106.90/258,241.82
  6. Step 6: Final answer
    x = 199,686.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.