Home / 300,991.42-415,225.04-180,108.36

Finding the Fourth Proportional to 300,991.42, 415,225.04 and 180,108.36

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Solution

The fourth proportional to 300,991.42, 415,225.04 and 180,108.36 is: 248,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,991.42 : 415,225.04 = 180,108.36 : x
  2. Step 2: Convert to fraction form
    300,991.42/415,225.04 = 180,108.36/x
  3. Step 3: Cross multiply
    300,991.42x = 415,225.04 × 180,108.36
  4. Step 4: Simplify right side
    300,991.42x = 74,785,500,985.33
  5. Step 5: Solve for x
    x = 74,785,500,985.33/300,991.42
  6. Step 6: Final answer
    x = 248,463.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.