Home / 285,739.58-428,579.30-117,277.72

Finding the Fourth Proportional to 285,739.58, 428,579.30 and 117,277.72

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Solution

The fourth proportional to 285,739.58, 428,579.30 and 117,277.72 is: 175,904.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,739.58 : 428,579.30 = 117,277.72 : x
  2. Step 2: Convert to fraction form
    285,739.58/428,579.30 = 117,277.72/x
  3. Step 3: Cross multiply
    285,739.58x = 428,579.30 × 117,277.72
  4. Step 4: Simplify right side
    285,739.58x = 50,262,803,143.20
  5. Step 5: Solve for x
    x = 50,262,803,143.20/285,739.58
  6. Step 6: Final answer
    x = 175,904.24

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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.