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Finding the Fourth Proportional to 428,209.96, 590,886.76 and 237,187.68

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Solution

The fourth proportional to 428,209.96, 590,886.76 and 237,187.68 is: 327,295.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,209.96 : 590,886.76 = 237,187.68 : x
  2. Step 2: Convert to fraction form
    428,209.96/590,886.76 = 237,187.68/x
  3. Step 3: Cross multiply
    428,209.96x = 590,886.76 × 237,187.68
  4. Step 4: Simplify right side
    428,209.96x = 140,151,059,747.12
  5. Step 5: Solve for x
    x = 140,151,059,747.12/428,209.96
  6. Step 6: Final answer
    x = 327,295.19

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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.