Home / 319,011.24-478,625.40-200,543.88

Finding the Fourth Proportional to 319,011.24, 478,625.40 and 200,543.88

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Solution

The fourth proportional to 319,011.24, 478,625.40 and 200,543.88 is: 300,884.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,011.24 : 478,625.40 = 200,543.88 : x
  2. Step 2: Convert to fraction form
    319,011.24/478,625.40 = 200,543.88/x
  3. Step 3: Cross multiply
    319,011.24x = 478,625.40 × 200,543.88
  4. Step 4: Simplify right side
    319,011.24x = 95,985,394,782.55
  5. Step 5: Solve for x
    x = 95,985,394,782.55/319,011.24
  6. Step 6: Final answer
    x = 300,884.05

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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.