Home / 319,643.04-478,717.44-252,633.36

Finding the Fourth Proportional to 319,643.04, 478,717.44 and 252,633.36

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Solution

The fourth proportional to 319,643.04, 478,717.44 and 252,633.36 is: 378,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,643.04 : 478,717.44 = 252,633.36 : x
  2. Step 2: Convert to fraction form
    319,643.04/478,717.44 = 252,633.36/x
  3. Step 3: Cross multiply
    319,643.04x = 478,717.44 × 252,633.36
  4. Step 4: Simplify right side
    319,643.04x = 120,939,995,357.80
  5. Step 5: Solve for x
    x = 120,939,995,357.80/319,643.04
  6. Step 6: Final answer
    x = 378,359.55

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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.