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Finding the Fourth Proportional to 421,812.60, 582,101.34 and 230,825.94

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Solution

The fourth proportional to 421,812.60, 582,101.34 and 230,825.94 is: 318,539.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,812.60 : 582,101.34 = 230,825.94 : x
  2. Step 2: Convert to fraction form
    421,812.60/582,101.34 = 230,825.94/x
  3. Step 3: Cross multiply
    421,812.60x = 582,101.34 × 230,825.94
  4. Step 4: Simplify right side
    421,812.60x = 134,364,087,826.63
  5. Step 5: Solve for x
    x = 134,364,087,826.63/421,812.60
  6. Step 6: Final answer
    x = 318,539.77

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1.5x scale

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.