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Finding the Fourth Proportional to 438,139.70, 604,491.09 and 244,515.95

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Solution

The fourth proportional to 438,139.70, 604,491.09 and 244,515.95 is: 337,352.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,139.70 : 604,491.09 = 244,515.95 : x
  2. Step 2: Convert to fraction form
    438,139.70/604,491.09 = 244,515.95/x
  3. Step 3: Cross multiply
    438,139.70x = 604,491.09 × 244,515.95
  4. Step 4: Simplify right side
    438,139.70x = 147,807,713,137.89
  5. Step 5: Solve for x
    x = 147,807,713,137.89/438,139.70
  6. Step 6: Final answer
    x = 337,352.93

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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.