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Finding the Fourth Proportional to 310,751.38, 428,832.66 and 174,785.30

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Solution

The fourth proportional to 310,751.38, 428,832.66 and 174,785.30 is: 241,201.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,751.38 : 428,832.66 = 174,785.30 : x
  2. Step 2: Convert to fraction form
    310,751.38/428,832.66 = 174,785.30/x
  3. Step 3: Cross multiply
    310,751.38x = 428,832.66 × 174,785.30
  4. Step 4: Simplify right side
    310,751.38x = 74,953,645,127.90
  5. Step 5: Solve for x
    x = 74,953,645,127.90/310,751.38
  6. Step 6: Final answer
    x = 241,201.33

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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.