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Finding the Fourth Proportional to 306,085.95, 459,176.45 and 156,245.18

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Solution

The fourth proportional to 306,085.95, 459,176.45 and 156,245.18 is: 234,392.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,085.95 : 459,176.45 = 156,245.18 : x
  2. Step 2: Convert to fraction form
    306,085.95/459,176.45 = 156,245.18/x
  3. Step 3: Cross multiply
    306,085.95x = 459,176.45 × 156,245.18
  4. Step 4: Simplify right side
    306,085.95x = 71,744,104,004.90
  5. Step 5: Solve for x
    x = 71,744,104,004.90/306,085.95
  6. Step 6: Final answer
    x = 234,392.02

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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.