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Finding the Fourth Proportional to 307,778.88, 424,926.96 and 236,020.80

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Solution

The fourth proportional to 307,778.88, 424,926.96 and 236,020.80 is: 325,856.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,778.88 : 424,926.96 = 236,020.80 : x
  2. Step 2: Convert to fraction form
    307,778.88/424,926.96 = 236,020.80/x
  3. Step 3: Cross multiply
    307,778.88x = 424,926.96 × 236,020.80
  4. Step 4: Simplify right side
    307,778.88x = 100,291,601,040.77
  5. Step 5: Solve for x
    x = 100,291,601,040.77/307,778.88
  6. Step 6: Final answer
    x = 325,856.02

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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.