Home / 485,113.62-727,653.98-148,140.66

Finding the Fourth Proportional to 485,113.62, 727,653.98 and 148,140.66

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Solution

The fourth proportional to 485,113.62, 727,653.98 and 148,140.66 is: 222,205.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,113.62 : 727,653.98 = 148,140.66 : x
  2. Step 2: Convert to fraction form
    485,113.62/727,653.98 = 148,140.66/x
  3. Step 3: Cross multiply
    485,113.62x = 727,653.98 × 148,140.66
  4. Step 4: Simplify right side
    485,113.62x = 107,795,140,848.83
  5. Step 5: Solve for x
    x = 107,795,140,848.83/485,113.62
  6. Step 6: Final answer
    x = 222,205.97

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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.