Home / 306,259.23-459,352.38-81,636.51

Finding the Fourth Proportional to 306,259.23, 459,352.38 and 81,636.51

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Solution

The fourth proportional to 306,259.23, 459,352.38 and 81,636.51 is: 122,445.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,259.23 : 459,352.38 = 81,636.51 : x
  2. Step 2: Convert to fraction form
    306,259.23/459,352.38 = 81,636.51/x
  3. Step 3: Cross multiply
    306,259.23x = 459,352.38 × 81,636.51
  4. Step 4: Simplify right side
    306,259.23x = 37,499,925,163.39
  5. Step 5: Solve for x
    x = 37,499,925,163.39/306,259.23
  6. Step 6: Final answer
    x = 122,445.04

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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.