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Finding the Fourth Proportional to 310,504.08, 428,541 and 174,549.22

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Solution

The fourth proportional to 310,504.08, 428,541 and 174,549.22 is: 240,903.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,504.08 : 428,541 = 174,549.22 : x
  2. Step 2: Convert to fraction form
    310,504.08/428,541 = 174,549.22/x
  3. Step 3: Cross multiply
    310,504.08x = 428,541 × 174,549.22
  4. Step 4: Simplify right side
    310,504.08x = 74,801,497,288.02
  5. Step 5: Solve for x
    x = 74,801,497,288.02/310,504.08
  6. Step 6: Final answer
    x = 240,903.43

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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.