Home / 285,827.58-428,641.20-117,299.25

Finding the Fourth Proportional to 285,827.58, 428,641.20 and 117,299.25

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Solution

The fourth proportional to 285,827.58, 428,641.20 and 117,299.25 is: 175,907.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,827.58 : 428,641.20 = 117,299.25 : x
  2. Step 2: Convert to fraction form
    285,827.58/428,641.20 = 117,299.25/x
  3. Step 3: Cross multiply
    285,827.58x = 428,641.20 × 117,299.25
  4. Step 4: Simplify right side
    285,827.58x = 50,279,291,279.10
  5. Step 5: Solve for x
    x = 50,279,291,279.10/285,827.58
  6. Step 6: Final answer
    x = 175,907.77

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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.