Home / 274,342.14-378,583.47-153,485.55

Finding the Fourth Proportional to 274,342.14, 378,583.47 and 153,485.55

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Solution

The fourth proportional to 274,342.14, 378,583.47 and 153,485.55 is: 211,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,342.14 : 378,583.47 = 153,485.55 : x
  2. Step 2: Convert to fraction form
    274,342.14/378,583.47 = 153,485.55/x
  3. Step 3: Cross multiply
    274,342.14x = 378,583.47 × 153,485.55
  4. Step 4: Simplify right side
    274,342.14x = 58,107,092,113.86
  5. Step 5: Solve for x
    x = 58,107,092,113.86/274,342.14
  6. Step 6: Final answer
    x = 211,805.20

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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.