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Finding the Fourth Proportional to 438,314.56, 657,537.56 and 153,954.97

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Solution

The fourth proportional to 438,314.56, 657,537.56 and 153,954.97 is: 230,955.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,314.56 : 657,537.56 = 153,954.97 : x
  2. Step 2: Convert to fraction form
    438,314.56/657,537.56 = 153,954.97/x
  3. Step 3: Cross multiply
    438,314.56x = 657,537.56 × 153,954.97
  4. Step 4: Simplify right side
    438,314.56x = 101,231,175,323.67
  5. Step 5: Solve for x
    x = 101,231,175,323.67/438,314.56
  6. Step 6: Final answer
    x = 230,955.54

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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.