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Finding the Fourth Proportional to 358,866.90, 538,300.34 and 106,127.69

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Solution

The fourth proportional to 358,866.90, 538,300.34 and 106,127.69 is: 159,191.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,866.90 : 538,300.34 = 106,127.69 : x
  2. Step 2: Convert to fraction form
    358,866.90/538,300.34 = 106,127.69/x
  3. Step 3: Cross multiply
    358,866.90x = 538,300.34 × 106,127.69
  4. Step 4: Simplify right side
    358,866.90x = 57,128,573,221.48
  5. Step 5: Solve for x
    x = 57,128,573,221.48/358,866.90
  6. Step 6: Final answer
    x = 159,191.54

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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.