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Finding the Fourth Proportional to 348,316.88, 522,481.80 and 99,005.36

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Solution

The fourth proportional to 348,316.88, 522,481.80 and 99,005.36 is: 148,509.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,316.88 : 522,481.80 = 99,005.36 : x
  2. Step 2: Convert to fraction form
    348,316.88/522,481.80 = 99,005.36/x
  3. Step 3: Cross multiply
    348,316.88x = 522,481.80 × 99,005.36
  4. Step 4: Simplify right side
    348,316.88x = 51,728,498,702.45
  5. Step 5: Solve for x
    x = 51,728,498,702.45/348,316.88
  6. Step 6: Final answer
    x = 148,509.88

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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.