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Finding the Fourth Proportional to 428,160.63, 590,861.67 and 237,186.39

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Solution

The fourth proportional to 428,160.63, 590,861.67 and 237,186.39 is: 327,317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,160.63 : 590,861.67 = 237,186.39 : x
  2. Step 2: Convert to fraction form
    428,160.63/590,861.67 = 237,186.39/x
  3. Step 3: Cross multiply
    428,160.63x = 590,861.67 × 237,186.39
  4. Step 4: Simplify right side
    428,160.63x = 140,144,342,356.43
  5. Step 5: Solve for x
    x = 140,144,342,356.43/428,160.63
  6. Step 6: Final answer
    x = 327,317.21

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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.