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Finding the Fourth Proportional to 428,235.70, 590,941.99 and 237,237.70

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Solution

The fourth proportional to 428,235.70, 590,941.99 and 237,237.70 is: 327,375.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,235.70 : 590,941.99 = 237,237.70 : x
  2. Step 2: Convert to fraction form
    428,235.70/590,941.99 = 237,237.70/x
  3. Step 3: Cross multiply
    428,235.70x = 590,941.99 × 237,237.70
  4. Step 4: Simplify right side
    428,235.70x = 140,193,718,541.02
  5. Step 5: Solve for x
    x = 140,193,718,541.02/428,235.70
  6. Step 6: Final answer
    x = 327,375.13

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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.