Home / 274,343.16-378,509.58-178,815

Finding the Fourth Proportional to 274,343.16, 378,509.58 and 178,815

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Solution

The fourth proportional to 274,343.16, 378,509.58 and 178,815 is: 246,709.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,343.16 : 378,509.58 = 178,815 : x
  2. Step 2: Convert to fraction form
    274,343.16/378,509.58 = 178,815/x
  3. Step 3: Cross multiply
    274,343.16x = 378,509.58 × 178,815
  4. Step 4: Simplify right side
    274,343.16x = 67,683,190,547.70
  5. Step 5: Solve for x
    x = 67,683,190,547.70/274,343.16
  6. Step 6: Final answer
    x = 246,709.96

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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.