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Finding the Fourth Proportional to 308,741.40, 426,146.94 and 181,457.88

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Solution

The fourth proportional to 308,741.40, 426,146.94 and 181,457.88 is: 250,461.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,741.40 : 426,146.94 = 181,457.88 : x
  2. Step 2: Convert to fraction form
    308,741.40/426,146.94 = 181,457.88/x
  3. Step 3: Cross multiply
    308,741.40x = 426,146.94 × 181,457.88
  4. Step 4: Simplify right side
    308,741.40x = 77,327,720,300.89
  5. Step 5: Solve for x
    x = 77,327,720,300.89/308,741.40
  6. Step 6: Final answer
    x = 250,461.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.