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Finding the Fourth Proportional to 421,262.56, 581,353.50 and 251,594.56

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Solution

The fourth proportional to 421,262.56, 581,353.50 and 251,594.56 is: 347,207.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,262.56 : 581,353.50 = 251,594.56 : x
  2. Step 2: Convert to fraction form
    421,262.56/581,353.50 = 251,594.56/x
  3. Step 3: Cross multiply
    421,262.56x = 581,353.50 × 251,594.56
  4. Step 4: Simplify right side
    421,262.56x = 146,265,378,036.96
  5. Step 5: Solve for x
    x = 146,265,378,036.96/421,262.56
  6. Step 6: Final answer
    x = 347,207.16

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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.