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Finding the Fourth Proportional to 438,684.60, 605,386.68 and 237,480.60

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Solution

The fourth proportional to 438,684.60, 605,386.68 and 237,480.60 is: 327,724.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,684.60 : 605,386.68 = 237,480.60 : x
  2. Step 2: Convert to fraction form
    438,684.60/605,386.68 = 237,480.60/x
  3. Step 3: Cross multiply
    438,684.60x = 605,386.68 × 237,480.60
  4. Step 4: Simplify right side
    438,684.60x = 143,767,591,998.41
  5. Step 5: Solve for x
    x = 143,767,591,998.41/438,684.60
  6. Step 6: Final answer
    x = 327,724.27

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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.