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Finding the Fourth Proportional to 445,764.60, 668,727.90 and 146,161.80

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Solution

The fourth proportional to 445,764.60, 668,727.90 and 146,161.80 is: 219,269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,764.60 : 668,727.90 = 146,161.80 : x
  2. Step 2: Convert to fraction form
    445,764.60/668,727.90 = 146,161.80/x
  3. Step 3: Cross multiply
    445,764.60x = 668,727.90 × 146,161.80
  4. Step 4: Simplify right side
    445,764.60x = 97,742,473,574.22
  5. Step 5: Solve for x
    x = 97,742,473,574.22/445,764.60
  6. Step 6: Final answer
    x = 219,269.26

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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.