Home / 419,621.12-629,722.37-166,875.71

Finding the Fourth Proportional to 419,621.12, 629,722.37 and 166,875.71

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Solution

The fourth proportional to 419,621.12, 629,722.37 and 166,875.71 is: 250,429.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,621.12 : 629,722.37 = 166,875.71 : x
  2. Step 2: Convert to fraction form
    419,621.12/629,722.37 = 166,875.71/x
  3. Step 3: Cross multiply
    419,621.12x = 629,722.37 × 166,875.71
  4. Step 4: Simplify right side
    419,621.12x = 105,085,363,613.64
  5. Step 5: Solve for x
    x = 105,085,363,613.64/419,621.12
  6. Step 6: Final answer
    x = 250,429.16

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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.