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Finding the Fourth Proportional to 306,023.70, 459,035.55 and 211,545.30

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Solution

The fourth proportional to 306,023.70, 459,035.55 and 211,545.30 is: 317,317.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,023.70 : 459,035.55 = 211,545.30 : x
  2. Step 2: Convert to fraction form
    306,023.70/459,035.55 = 211,545.30/x
  3. Step 3: Cross multiply
    306,023.70x = 459,035.55 × 211,545.30
  4. Step 4: Simplify right side
    306,023.70x = 97,106,813,135.42
  5. Step 5: Solve for x
    x = 97,106,813,135.42/306,023.70
  6. Step 6: Final answer
    x = 317,317.95

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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.