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Finding the Fourth Proportional to 299,303.88, 413,110.05 and 172,053.30

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Solution

The fourth proportional to 299,303.88, 413,110.05 and 172,053.30 is: 237,474.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,303.88 : 413,110.05 = 172,053.30 : x
  2. Step 2: Convert to fraction form
    299,303.88/413,110.05 = 172,053.30/x
  3. Step 3: Cross multiply
    299,303.88x = 413,110.05 × 172,053.30
  4. Step 4: Simplify right side
    299,303.88x = 71,076,947,365.67
  5. Step 5: Solve for x
    x = 71,076,947,365.67/299,303.88
  6. Step 6: Final answer
    x = 237,474.19

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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.