Home / 319,843.20-478,723.26-235,570.20

Finding the Fourth Proportional to 319,843.20, 478,723.26 and 235,570.20

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Solution

The fourth proportional to 319,843.20, 478,723.26 and 235,570.20 is: 352,588.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,843.20 : 478,723.26 = 235,570.20 : x
  2. Step 2: Convert to fraction form
    319,843.20/478,723.26 = 235,570.20/x
  3. Step 3: Cross multiply
    319,843.20x = 478,723.26 × 235,570.20
  4. Step 4: Simplify right side
    319,843.20x = 112,772,934,102.85
  5. Step 5: Solve for x
    x = 112,772,934,102.85/319,843.20
  6. Step 6: Final answer
    x = 352,588.19

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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.