Home / 358,855.17-538,397.07-106,137.21

Finding the Fourth Proportional to 358,855.17, 538,397.07 and 106,137.21

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Solution

The fourth proportional to 358,855.17, 538,397.07 and 106,137.21 is: 159,239.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,855.17 : 538,397.07 = 106,137.21 : x
  2. Step 2: Convert to fraction form
    358,855.17/538,397.07 = 106,137.21/x
  3. Step 3: Cross multiply
    358,855.17x = 538,397.07 × 106,137.21
  4. Step 4: Simplify right side
    358,855.17x = 57,143,962,881.97
  5. Step 5: Solve for x
    x = 57,143,962,881.97/358,855.17
  6. Step 6: Final answer
    x = 159,239.63

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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.