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Finding the Fourth Proportional to 438,850.70, 658,300.65 and 123,283

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Solution

The fourth proportional to 438,850.70, 658,300.65 and 123,283 is: 184,931.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,850.70 : 658,300.65 = 123,283 : x
  2. Step 2: Convert to fraction form
    438,850.70/658,300.65 = 123,283/x
  3. Step 3: Cross multiply
    438,850.70x = 658,300.65 × 123,283
  4. Step 4: Simplify right side
    438,850.70x = 81,157,279,033.95
  5. Step 5: Solve for x
    x = 81,157,279,033.95/438,850.70
  6. Step 6: Final answer
    x = 184,931.41

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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.