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Finding the Fourth Proportional to 427,914.90, 590,541 and 236,928.28

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Solution

The fourth proportional to 427,914.90, 590,541 and 236,928.28 is: 326,971.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,914.90 : 590,541 = 236,928.28 : x
  2. Step 2: Convert to fraction form
    427,914.90/590,541 = 236,928.28/x
  3. Step 3: Cross multiply
    427,914.90x = 590,541 × 236,928.28
  4. Step 4: Simplify right side
    427,914.90x = 139,915,863,399.48
  5. Step 5: Solve for x
    x = 139,915,863,399.48/427,914.90
  6. Step 6: Final answer
    x = 326,971.24

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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.