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Finding the Fourth Proportional to 427,153.59, 589,497.21 and 245,861.01

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Solution

The fourth proportional to 427,153.59, 589,497.21 and 245,861.01 is: 339,302.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,153.59 : 589,497.21 = 245,861.01 : x
  2. Step 2: Convert to fraction form
    427,153.59/589,497.21 = 245,861.01/x
  3. Step 3: Cross multiply
    427,153.59x = 589,497.21 × 245,861.01
  4. Step 4: Simplify right side
    427,153.59x = 144,934,379,442.78
  5. Step 5: Solve for x
    x = 144,934,379,442.78/427,153.59
  6. Step 6: Final answer
    x = 339,302.73

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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.