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Finding the Fourth Proportional to 338,802.28, 507,525.81 and 203,791.78

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Solution

The fourth proportional to 338,802.28, 507,525.81 and 203,791.78 is: 305,280.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,802.28 : 507,525.81 = 203,791.78 : x
  2. Step 2: Convert to fraction form
    338,802.28/507,525.81 = 203,791.78/x
  3. Step 3: Cross multiply
    338,802.28x = 507,525.81 × 203,791.78
  4. Step 4: Simplify right side
    338,802.28x = 103,429,588,215.84
  5. Step 5: Solve for x
    x = 103,429,588,215.84/338,802.28
  6. Step 6: Final answer
    x = 305,280.08

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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.