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Finding the Fourth Proportional to 306,732.30, 459,114.30 and 218,158.80

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Solution

The fourth proportional to 306,732.30, 459,114.30 and 218,158.80 is: 326,538.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,732.30 : 459,114.30 = 218,158.80 : x
  2. Step 2: Convert to fraction form
    306,732.30/459,114.30 = 218,158.80/x
  3. Step 3: Cross multiply
    306,732.30x = 459,114.30 × 218,158.80
  4. Step 4: Simplify right side
    306,732.30x = 100,159,824,750.84
  5. Step 5: Solve for x
    x = 100,159,824,750.84/306,732.30
  6. Step 6: Final answer
    x = 326,538.24

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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.