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Finding the Fourth Proportional to 388,673.94, 581,694.11 and 239,009.03

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Solution

The fourth proportional to 388,673.94, 581,694.11 and 239,009.03 is: 357,703.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,673.94 : 581,694.11 = 239,009.03 : x
  2. Step 2: Convert to fraction form
    388,673.94/581,694.11 = 239,009.03/x
  3. Step 3: Cross multiply
    388,673.94x = 581,694.11 × 239,009.03
  4. Step 4: Simplify right side
    388,673.94x = 139,030,143,961.93
  5. Step 5: Solve for x
    x = 139,030,143,961.93/388,673.94
  6. Step 6: Final answer
    x = 357,703.79

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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.