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Finding the Fourth Proportional to 438,343.44, 657,552.60 and 154,009.14

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Solution

The fourth proportional to 438,343.44, 657,552.60 and 154,009.14 is: 231,026.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,343.44 : 657,552.60 = 154,009.14 : x
  2. Step 2: Convert to fraction form
    438,343.44/657,552.60 = 154,009.14/x
  3. Step 3: Cross multiply
    438,343.44x = 657,552.60 × 154,009.14
  4. Step 4: Simplify right side
    438,343.44x = 101,269,110,430.76
  5. Step 5: Solve for x
    x = 101,269,110,430.76/438,343.44
  6. Step 6: Final answer
    x = 231,026.86

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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.