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Finding the Fourth Proportional to 373,454.70, 559,513.80 and 227,128.20

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Solution

The fourth proportional to 373,454.70, 559,513.80 and 227,128.20 is: 340,285.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,454.70 : 559,513.80 = 227,128.20 : x
  2. Step 2: Convert to fraction form
    373,454.70/559,513.80 = 227,128.20/x
  3. Step 3: Cross multiply
    373,454.70x = 559,513.80 × 227,128.20
  4. Step 4: Simplify right side
    373,454.70x = 127,081,362,269.16
  5. Step 5: Solve for x
    x = 127,081,362,269.16/373,454.70
  6. Step 6: Final answer
    x = 340,285.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.