Home / 208,457.26-312,682.57-66,300.48

Finding the Fourth Proportional to 208,457.26, 312,682.57 and 66,300.48

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Solution

The fourth proportional to 208,457.26, 312,682.57 and 66,300.48 is: 99,449.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,457.26 : 312,682.57 = 66,300.48 : x
  2. Step 2: Convert to fraction form
    208,457.26/312,682.57 = 66,300.48/x
  3. Step 3: Cross multiply
    208,457.26x = 312,682.57 × 66,300.48
  4. Step 4: Simplify right side
    208,457.26x = 20,731,004,312.88
  5. Step 5: Solve for x
    x = 20,731,004,312.88/208,457.26
  6. Step 6: Final answer
    x = 99,449.66

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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.