Home / 274,365.16-378,638.64-153,499.24

Finding the Fourth Proportional to 274,365.16, 378,638.64 and 153,499.24

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Solution

The fourth proportional to 274,365.16, 378,638.64 and 153,499.24 is: 211,837.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,365.16 : 378,638.64 = 153,499.24 : x
  2. Step 2: Convert to fraction form
    274,365.16/378,638.64 = 153,499.24/x
  3. Step 3: Cross multiply
    274,365.16x = 378,638.64 × 153,499.24
  4. Step 4: Simplify right side
    274,365.16x = 58,120,743,474.63
  5. Step 5: Solve for x
    x = 58,120,743,474.63/274,365.16
  6. Step 6: Final answer
    x = 211,837.19

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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.