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Finding the Fourth Proportional to 450,285.88, 621,333.66 and 256,718.56

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Solution

The fourth proportional to 450,285.88, 621,333.66 and 256,718.56 is: 354,236.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,285.88 : 621,333.66 = 256,718.56 : x
  2. Step 2: Convert to fraction form
    450,285.88/621,333.66 = 256,718.56/x
  3. Step 3: Cross multiply
    450,285.88x = 621,333.66 × 256,718.56
  4. Step 4: Simplify right side
    450,285.88x = 159,507,882,474.73
  5. Step 5: Solve for x
    x = 159,507,882,474.73/450,285.88
  6. Step 6: Final answer
    x = 354,236.92

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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.