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Finding the Fourth Proportional to 303,529.70, 455,294.55 and 214,883.30

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Solution

The fourth proportional to 303,529.70, 455,294.55 and 214,883.30 is: 322,324.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,529.70 : 455,294.55 = 214,883.30 : x
  2. Step 2: Convert to fraction form
    303,529.70/455,294.55 = 214,883.30/x
  3. Step 3: Cross multiply
    303,529.70x = 455,294.55 × 214,883.30
  4. Step 4: Simplify right side
    303,529.70x = 97,835,195,376.02
  5. Step 5: Solve for x
    x = 97,835,195,376.02/303,529.70
  6. Step 6: Final answer
    x = 322,324.95

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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.