Home / 274,310.13-378,532.76-153,428.07

Finding the Fourth Proportional to 274,310.13, 378,532.76 and 153,428.07

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Solution

The fourth proportional to 274,310.13, 378,532.76 and 153,428.07 is: 211,722.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,310.13 : 378,532.76 = 153,428.07 : x
  2. Step 2: Convert to fraction form
    274,310.13/378,532.76 = 153,428.07/x
  3. Step 3: Cross multiply
    274,310.13x = 378,532.76 × 153,428.07
  4. Step 4: Simplify right side
    274,310.13x = 58,077,551,666.69
  5. Step 5: Solve for x
    x = 58,077,551,666.69/274,310.13
  6. Step 6: Final answer
    x = 211,722.23

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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.