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Finding the Fourth Proportional to 454,990.53, 682,485.75 and 155,473.70

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Solution

The fourth proportional to 454,990.53, 682,485.75 and 155,473.70 is: 233,210.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,990.53 : 682,485.75 = 155,473.70 : x
  2. Step 2: Convert to fraction form
    454,990.53/682,485.75 = 155,473.70/x
  3. Step 3: Cross multiply
    454,990.53x = 682,485.75 × 155,473.70
  4. Step 4: Simplify right side
    454,990.53x = 106,108,581,337.35
  5. Step 5: Solve for x
    x = 106,108,581,337.35/454,990.53
  6. Step 6: Final answer
    x = 233,210.53

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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.