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Finding the Fourth Proportional to 306,722.70, 460,084.05 and 212,244.30

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Solution

The fourth proportional to 306,722.70, 460,084.05 and 212,244.30 is: 318,366.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,722.70 : 460,084.05 = 212,244.30 : x
  2. Step 2: Convert to fraction form
    306,722.70/460,084.05 = 212,244.30/x
  3. Step 3: Cross multiply
    306,722.70x = 460,084.05 × 212,244.30
  4. Step 4: Simplify right side
    306,722.70x = 97,650,217,133.42
  5. Step 5: Solve for x
    x = 97,650,217,133.42/306,722.70
  6. Step 6: Final answer
    x = 318,366.45

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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.