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Finding the Fourth Proportional to 431,033.70, 646,550.55 and 164,802.90

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Solution

The fourth proportional to 431,033.70, 646,550.55 and 164,802.90 is: 247,204.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,033.70 : 646,550.55 = 164,802.90 : x
  2. Step 2: Convert to fraction form
    431,033.70/646,550.55 = 164,802.90/x
  3. Step 3: Cross multiply
    431,033.70x = 646,550.55 × 164,802.90
  4. Step 4: Simplify right side
    431,033.70x = 106,553,405,636.60
  5. Step 5: Solve for x
    x = 106,553,405,636.60/431,033.70
  6. Step 6: Final answer
    x = 247,204.35

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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.