Home / 445,721.60-668,663.40-146,118.80

Finding the Fourth Proportional to 445,721.60, 668,663.40 and 146,118.80

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Solution

The fourth proportional to 445,721.60, 668,663.40 and 146,118.80 is: 219,204.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,721.60 : 668,663.40 = 146,118.80 : x
  2. Step 2: Convert to fraction form
    445,721.60/668,663.40 = 146,118.80/x
  3. Step 3: Cross multiply
    445,721.60x = 668,663.40 × 146,118.80
  4. Step 4: Simplify right side
    445,721.60x = 97,704,293,611.92
  5. Step 5: Solve for x
    x = 97,704,293,611.92/445,721.60
  6. Step 6: Final answer
    x = 219,204.75

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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.