Home / 293,621.72-405,178.77-172,739.63

Finding the Fourth Proportional to 293,621.72, 405,178.77 and 172,739.63

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Solution

The fourth proportional to 293,621.72, 405,178.77 and 172,739.63 is: 238,369.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,621.72 : 405,178.77 = 172,739.63 : x
  2. Step 2: Convert to fraction form
    293,621.72/405,178.77 = 172,739.63/x
  3. Step 3: Cross multiply
    293,621.72x = 405,178.77 × 172,739.63
  4. Step 4: Simplify right side
    293,621.72x = 69,990,428,896.72
  5. Step 5: Solve for x
    x = 69,990,428,896.72/293,621.72
  6. Step 6: Final answer
    x = 238,369.38

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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.