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Finding the Fourth Proportional to 306,066.10, 459,099.15 and 186,315.70

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Solution

The fourth proportional to 306,066.10, 459,099.15 and 186,315.70 is: 279,473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,066.10 : 459,099.15 = 186,315.70 : x
  2. Step 2: Convert to fraction form
    306,066.10/459,099.15 = 186,315.70/x
  3. Step 3: Cross multiply
    306,066.10x = 459,099.15 × 186,315.70
  4. Step 4: Simplify right side
    306,066.10x = 85,537,379,501.66
  5. Step 5: Solve for x
    x = 85,537,379,501.66/306,066.10
  6. Step 6: Final answer
    x = 279,473.55

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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.