Home / 285,536.04-428,305.03-72,303.85

Finding the Fourth Proportional to 285,536.04, 428,305.03 and 72,303.85

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Solution

The fourth proportional to 285,536.04, 428,305.03 and 72,303.85 is: 108,456.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,536.04 : 428,305.03 = 72,303.85 : x
  2. Step 2: Convert to fraction form
    285,536.04/428,305.03 = 72,303.85/x
  3. Step 3: Cross multiply
    285,536.04x = 428,305.03 × 72,303.85
  4. Step 4: Simplify right side
    285,536.04x = 30,968,103,533.37
  5. Step 5: Solve for x
    x = 30,968,103,533.37/285,536.04
  6. Step 6: Final answer
    x = 108,456.02

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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.