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Finding the Fourth Proportional to 306,482.07, 459,723.09 and 84,866.07

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Solution

The fourth proportional to 306,482.07, 459,723.09 and 84,866.07 is: 127,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,482.07 : 459,723.09 = 84,866.07 : x
  2. Step 2: Convert to fraction form
    306,482.07/459,723.09 = 84,866.07/x
  3. Step 3: Cross multiply
    306,482.07x = 459,723.09 × 84,866.07
  4. Step 4: Simplify right side
    306,482.07x = 39,014,891,936.56
  5. Step 5: Solve for x
    x = 39,014,891,936.56/306,482.07
  6. Step 6: Final answer
    x = 127,299.10

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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.