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Finding the Fourth Proportional to 438,729.24, 657,673.48 and 185,661.64

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Solution

The fourth proportional to 438,729.24, 657,673.48 and 185,661.64 is: 278,314.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,729.24 : 657,673.48 = 185,661.64 : x
  2. Step 2: Convert to fraction form
    438,729.24/657,673.48 = 185,661.64/x
  3. Step 3: Cross multiply
    438,729.24x = 657,673.48 × 185,661.64
  4. Step 4: Simplify right side
    438,729.24x = 122,104,736,881.31
  5. Step 5: Solve for x
    x = 122,104,736,881.31/438,729.24
  6. Step 6: Final answer
    x = 278,314.56

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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.