Home / 231,428.43-347,142.66-98,215.28

Finding the Fourth Proportional to 231,428.43, 347,142.66 and 98,215.28

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Solution

The fourth proportional to 231,428.43, 347,142.66 and 98,215.28 is: 147,322.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,428.43 : 347,142.66 = 98,215.28 : x
  2. Step 2: Convert to fraction form
    231,428.43/347,142.66 = 98,215.28/x
  3. Step 3: Cross multiply
    231,428.43x = 347,142.66 × 98,215.28
  4. Step 4: Simplify right side
    231,428.43x = 34,094,713,551.84
  5. Step 5: Solve for x
    x = 34,094,713,551.84/231,428.43
  6. Step 6: Final answer
    x = 147,322.93

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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.