Home / 285,741.58-428,582.30-117,279.72

Finding the Fourth Proportional to 285,741.58, 428,582.30 and 117,279.72

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Solution

The fourth proportional to 285,741.58, 428,582.30 and 117,279.72 is: 175,907.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,741.58 : 428,582.30 = 117,279.72 : x
  2. Step 2: Convert to fraction form
    285,741.58/428,582.30 = 117,279.72/x
  3. Step 3: Cross multiply
    285,741.58x = 428,582.30 × 117,279.72
  4. Step 4: Simplify right side
    285,741.58x = 50,264,012,140.96
  5. Step 5: Solve for x
    x = 50,264,012,140.96/285,741.58
  6. Step 6: Final answer
    x = 175,907.24

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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.