Home / 274,024.40-378,127.71-153,162.92

Finding the Fourth Proportional to 274,024.40, 378,127.71 and 153,162.92

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Solution

The fourth proportional to 274,024.40, 378,127.71 and 153,162.92 is: 211,350.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,024.40 : 378,127.71 = 153,162.92 : x
  2. Step 2: Convert to fraction form
    274,024.40/378,127.71 = 153,162.92/x
  3. Step 3: Cross multiply
    274,024.40x = 378,127.71 × 153,162.92
  4. Step 4: Simplify right side
    274,024.40x = 57,915,145,141.83
  5. Step 5: Solve for x
    x = 57,915,145,141.83/274,024.40
  6. Step 6: Final answer
    x = 211,350.33

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1.5x scale

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.