Home / 438,634.15-657,852.81-201,749.25

Finding the Fourth Proportional to 438,634.15, 657,852.81 and 201,749.25

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Solution

The fourth proportional to 438,634.15, 657,852.81 and 201,749.25 is: 302,578.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,634.15 : 657,852.81 = 201,749.25 : x
  2. Step 2: Convert to fraction form
    438,634.15/657,852.81 = 201,749.25/x
  3. Step 3: Cross multiply
    438,634.15x = 657,852.81 × 201,749.25
  4. Step 4: Simplify right side
    438,634.15x = 132,721,311,027.89
  5. Step 5: Solve for x
    x = 132,721,311,027.89/438,634.15
  6. Step 6: Final answer
    x = 302,578.61

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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.