Home / 285,675.30-428,542.11-98,662.50

Finding the Fourth Proportional to 285,675.30, 428,542.11 and 98,662.50

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Solution

The fourth proportional to 285,675.30, 428,542.11 and 98,662.50 is: 148,003.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,675.30 : 428,542.11 = 98,662.50 : x
  2. Step 2: Convert to fraction form
    285,675.30/428,542.11 = 98,662.50/x
  3. Step 3: Cross multiply
    285,675.30x = 428,542.11 × 98,662.50
  4. Step 4: Simplify right side
    285,675.30x = 42,281,035,927.88
  5. Step 5: Solve for x
    x = 42,281,035,927.88/285,675.30
  6. Step 6: Final answer
    x = 148,003.82

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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.