Home / 384,106.25-576,159.48-131,389.16

Finding the Fourth Proportional to 384,106.25, 576,159.48 and 131,389.16

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Solution

The fourth proportional to 384,106.25, 576,159.48 and 131,389.16 is: 197,083.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,106.25 : 576,159.48 = 131,389.16 : x
  2. Step 2: Convert to fraction form
    384,106.25/576,159.48 = 131,389.16/x
  3. Step 3: Cross multiply
    384,106.25x = 576,159.48 × 131,389.16
  4. Step 4: Simplify right side
    384,106.25x = 75,701,107,222.44
  5. Step 5: Solve for x
    x = 75,701,107,222.44/384,106.25
  6. Step 6: Final answer
    x = 197,083.77

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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.