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Finding the Fourth Proportional to 451,187.63, 622,638.93 and 269,907.20

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Solution

The fourth proportional to 451,187.63, 622,638.93 and 269,907.20 is: 372,471.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,187.63 : 622,638.93 = 269,907.20 : x
  2. Step 2: Convert to fraction form
    451,187.63/622,638.93 = 269,907.20/x
  3. Step 3: Cross multiply
    451,187.63x = 622,638.93 × 269,907.20
  4. Step 4: Simplify right side
    451,187.63x = 168,054,727,094.10
  5. Step 5: Solve for x
    x = 168,054,727,094.10/451,187.63
  6. Step 6: Final answer
    x = 372,471.93

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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.