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Finding the Fourth Proportional to 428,264.60, 591,009.90 and 237,281

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Solution

The fourth proportional to 428,264.60, 591,009.90 and 237,281 is: 327,450.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,264.60 : 591,009.90 = 237,281 : x
  2. Step 2: Convert to fraction form
    428,264.60/591,009.90 = 237,281/x
  3. Step 3: Cross multiply
    428,264.60x = 591,009.90 × 237,281
  4. Step 4: Simplify right side
    428,264.60x = 140,235,420,081.90
  5. Step 5: Solve for x
    x = 140,235,420,081.90/428,264.60
  6. Step 6: Final answer
    x = 327,450.41

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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.