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Finding the Fourth Proportional to 439,606.84, 606,657.78 and 238,402.84

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Solution

The fourth proportional to 439,606.84, 606,657.78 and 238,402.84 is: 328,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,606.84 : 606,657.78 = 238,402.84 : x
  2. Step 2: Convert to fraction form
    439,606.84/606,657.78 = 238,402.84/x
  3. Step 3: Cross multiply
    439,606.84x = 606,657.78 × 238,402.84
  4. Step 4: Simplify right side
    439,606.84x = 144,628,937,660.10
  5. Step 5: Solve for x
    x = 144,628,937,660.10/439,606.84
  6. Step 6: Final answer
    x = 328,996.10

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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.