Home / 304,345.30-420,131.04-181,880.90

Finding the Fourth Proportional to 304,345.30, 420,131.04 and 181,880.90

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Solution

The fourth proportional to 304,345.30, 420,131.04 and 181,880.90 is: 251,076.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,345.30 : 420,131.04 = 181,880.90 : x
  2. Step 2: Convert to fraction form
    304,345.30/420,131.04 = 181,880.90/x
  3. Step 3: Cross multiply
    304,345.30x = 420,131.04 × 181,880.90
  4. Step 4: Simplify right side
    304,345.30x = 76,413,811,673.14
  5. Step 5: Solve for x
    x = 76,413,811,673.14/304,345.30
  6. Step 6: Final answer
    x = 251,076.04

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1.5x scale

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.