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Finding the Fourth Proportional to 272,810.88, 376,479.80 and 158,111.80

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Solution

The fourth proportional to 272,810.88, 376,479.80 and 158,111.80 is: 218,194.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,810.88 : 376,479.80 = 158,111.80 : x
  2. Step 2: Convert to fraction form
    272,810.88/376,479.80 = 158,111.80/x
  3. Step 3: Cross multiply
    272,810.88x = 376,479.80 × 158,111.80
  4. Step 4: Simplify right side
    272,810.88x = 59,525,898,841.64
  5. Step 5: Solve for x
    x = 59,525,898,841.64/272,810.88
  6. Step 6: Final answer
    x = 218,194.74

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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.