Home / 258,053.79-387,207.51-115,999.44

Finding the Fourth Proportional to 258,053.79, 387,207.51 and 115,999.44

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Solution

The fourth proportional to 258,053.79, 387,207.51 and 115,999.44 is: 174,056.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,053.79 : 387,207.51 = 115,999.44 : x
  2. Step 2: Convert to fraction form
    258,053.79/387,207.51 = 115,999.44/x
  3. Step 3: Cross multiply
    258,053.79x = 387,207.51 × 115,999.44
  4. Step 4: Simplify right side
    258,053.79x = 44,915,854,323.79
  5. Step 5: Solve for x
    x = 44,915,854,323.79/258,053.79
  6. Step 6: Final answer
    x = 174,056.17

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1.5x scale

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.