Home / 258,208.36-387,374.82-89,704.24

Finding the Fourth Proportional to 258,208.36, 387,374.82 and 89,704.24

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Solution

The fourth proportional to 258,208.36, 387,374.82 and 89,704.24 is: 134,578.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,208.36 : 387,374.82 = 89,704.24 : x
  2. Step 2: Convert to fraction form
    258,208.36/387,374.82 = 89,704.24/x
  3. Step 3: Cross multiply
    258,208.36x = 387,374.82 × 89,704.24
  4. Step 4: Simplify right side
    258,208.36x = 34,749,163,823.24
  5. Step 5: Solve for x
    x = 34,749,163,823.24/258,208.36
  6. Step 6: Final answer
    x = 134,578.00

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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.