Home / 274,172.08-378,355.28-153,313.60

Finding the Fourth Proportional to 274,172.08, 378,355.28 and 153,313.60

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Solution

The fourth proportional to 274,172.08, 378,355.28 and 153,313.60 is: 211,571.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,172.08 : 378,355.28 = 153,313.60 : x
  2. Step 2: Convert to fraction form
    274,172.08/378,355.28 = 153,313.60/x
  3. Step 3: Cross multiply
    274,172.08x = 378,355.28 × 153,313.60
  4. Step 4: Simplify right side
    274,172.08x = 58,007,010,055.81
  5. Step 5: Solve for x
    x = 58,007,010,055.81/274,172.08
  6. Step 6: Final answer
    x = 211,571.54

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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.