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Finding the Fourth Proportional to 438,513.75, 605,148.98 and 237,309.75

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Solution

The fourth proportional to 438,513.75, 605,148.98 and 237,309.75 is: 327,487.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,513.75 : 605,148.98 = 237,309.75 : x
  2. Step 2: Convert to fraction form
    438,513.75/605,148.98 = 237,309.75/x
  3. Step 3: Cross multiply
    438,513.75x = 605,148.98 × 237,309.75
  4. Step 4: Simplify right side
    438,513.75x = 143,607,751,970.01
  5. Step 5: Solve for x
    x = 143,607,751,970.01/438,513.75
  6. Step 6: Final answer
    x = 327,487.46

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1.5x scale

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.