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Finding the Fourth Proportional to 306,040.20, 459,060.30 and 304,290.60

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Solution

The fourth proportional to 306,040.20, 459,060.30 and 304,290.60 is: 456,435.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,040.20 : 459,060.30 = 304,290.60 : x
  2. Step 2: Convert to fraction form
    306,040.20/459,060.30 = 304,290.60/x
  3. Step 3: Cross multiply
    306,040.20x = 459,060.30 × 304,290.60
  4. Step 4: Simplify right side
    306,040.20x = 139,687,734,123.18
  5. Step 5: Solve for x
    x = 139,687,734,123.18/306,040.20
  6. Step 6: Final answer
    x = 456,435.90

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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.