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Finding the Fourth Proportional to 274,055.63, 378,195.59 and 153,196.80

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Solution

The fourth proportional to 274,055.63, 378,195.59 and 153,196.80 is: 211,410.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,055.63 : 378,195.59 = 153,196.80 : x
  2. Step 2: Convert to fraction form
    274,055.63/378,195.59 = 153,196.80/x
  3. Step 3: Cross multiply
    274,055.63x = 378,195.59 × 153,196.80
  4. Step 4: Simplify right side
    274,055.63x = 57,938,353,396.13
  5. Step 5: Solve for x
    x = 57,938,353,396.13/274,055.63
  6. Step 6: Final answer
    x = 211,410.93

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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.