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Finding the Fourth Proportional to 421,187.52, 581,626.80 and 270,546.96

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Solution

The fourth proportional to 421,187.52, 581,626.80 and 270,546.96 is: 373,604.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,187.52 : 581,626.80 = 270,546.96 : x
  2. Step 2: Convert to fraction form
    421,187.52/581,626.80 = 270,546.96/x
  3. Step 3: Cross multiply
    421,187.52x = 581,626.80 × 270,546.96
  4. Step 4: Simplify right side
    421,187.52x = 157,357,362,594.53
  5. Step 5: Solve for x
    x = 157,357,362,594.53/421,187.52
  6. Step 6: Final answer
    x = 373,604.05

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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.