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Finding the Fourth Proportional to 439,954.49, 607,137.59 and 238,750.49

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Solution

The fourth proportional to 439,954.49, 607,137.59 and 238,750.49 is: 329,475.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,954.49 : 607,137.59 = 238,750.49 : x
  2. Step 2: Convert to fraction form
    439,954.49/607,137.59 = 238,750.49/x
  3. Step 3: Cross multiply
    439,954.49x = 607,137.59 × 238,750.49
  4. Step 4: Simplify right side
    439,954.49x = 144,954,395,916.17
  5. Step 5: Solve for x
    x = 144,954,395,916.17/439,954.49
  6. Step 6: Final answer
    x = 329,475.89

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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.