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Finding the Fourth Proportional to 293,590.31, 405,349.77 and 225,485.57

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Solution

The fourth proportional to 293,590.31, 405,349.77 and 225,485.57 is: 311,319.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,590.31 : 405,349.77 = 225,485.57 : x
  2. Step 2: Convert to fraction form
    293,590.31/405,349.77 = 225,485.57/x
  3. Step 3: Cross multiply
    293,590.31x = 405,349.77 × 225,485.57
  4. Step 4: Simplify right side
    293,590.31x = 91,400,521,911.07
  5. Step 5: Solve for x
    x = 91,400,521,911.07/293,590.31
  6. Step 6: Final answer
    x = 311,319.96

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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.