Home / 285,226.86-428,260.82-159,113.50

Finding the Fourth Proportional to 285,226.86, 428,260.82 and 159,113.50

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Solution

The fourth proportional to 285,226.86, 428,260.82 and 159,113.50 is: 238,904.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,226.86 : 428,260.82 = 159,113.50 : x
  2. Step 2: Convert to fraction form
    285,226.86/428,260.82 = 159,113.50/x
  3. Step 3: Cross multiply
    285,226.86x = 428,260.82 × 159,113.50
  4. Step 4: Simplify right side
    285,226.86x = 68,142,077,983.07
  5. Step 5: Solve for x
    x = 68,142,077,983.07/285,226.86
  6. Step 6: Final answer
    x = 238,904.84

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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.