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Finding the Fourth Proportional to 274,322.73, 378,550.08 and 153,440.64

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Solution

The fourth proportional to 274,322.73, 378,550.08 and 153,440.64 is: 211,739.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,322.73 : 378,550.08 = 153,440.64 : x
  2. Step 2: Convert to fraction form
    274,322.73/378,550.08 = 153,440.64/x
  3. Step 3: Cross multiply
    274,322.73x = 378,550.08 × 153,440.64
  4. Step 4: Simplify right side
    274,322.73x = 58,084,966,547.25
  5. Step 5: Solve for x
    x = 58,084,966,547.25/274,322.73
  6. Step 6: Final answer
    x = 211,739.53

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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.