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Finding the Fourth Proportional to 305,708.60, 459,000.30 and 231,350.60

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Solution

The fourth proportional to 305,708.60, 459,000.30 and 231,350.60 is: 347,356.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,708.60 : 459,000.30 = 231,350.60 : x
  2. Step 2: Convert to fraction form
    305,708.60/459,000.30 = 231,350.60/x
  3. Step 3: Cross multiply
    305,708.60x = 459,000.30 × 231,350.60
  4. Step 4: Simplify right side
    305,708.60x = 106,189,994,805.18
  5. Step 5: Solve for x
    x = 106,189,994,805.18/305,708.60
  6. Step 6: Final answer
    x = 347,356.91

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1.5x scale

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.