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Finding the Fourth Proportional to 306,008.40, 459,077.40 and 92,758.80

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Solution

The fourth proportional to 306,008.40, 459,077.40 and 92,758.80 is: 139,157.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,008.40 : 459,077.40 = 92,758.80 : x
  2. Step 2: Convert to fraction form
    306,008.40/459,077.40 = 92,758.80/x
  3. Step 3: Cross multiply
    306,008.40x = 459,077.40 × 92,758.80
  4. Step 4: Simplify right side
    306,008.40x = 42,583,468,731.12
  5. Step 5: Solve for x
    x = 42,583,468,731.12/306,008.40
  6. Step 6: Final answer
    x = 139,157.84

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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.