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Finding the Fourth Proportional to 272,001.69, 375,357.36 and 151,140.78

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Solution

The fourth proportional to 272,001.69, 375,357.36 and 151,140.78 is: 208,571.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,001.69 : 375,357.36 = 151,140.78 : x
  2. Step 2: Convert to fraction form
    272,001.69/375,357.36 = 151,140.78/x
  3. Step 3: Cross multiply
    272,001.69x = 375,357.36 × 151,140.78
  4. Step 4: Simplify right side
    272,001.69x = 56,731,804,169.14
  5. Step 5: Solve for x
    x = 56,731,804,169.14/272,001.69
  6. Step 6: Final answer
    x = 208,571.51

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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.