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Finding the Fourth Proportional to 400,066, 552,100.66 and 227,980.28

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Solution

The fourth proportional to 400,066, 552,100.66 and 227,980.28 is: 314,618.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,066 : 552,100.66 = 227,980.28 : x
  2. Step 2: Convert to fraction form
    400,066/552,100.66 = 227,980.28/x
  3. Step 3: Cross multiply
    400,066x = 552,100.66 × 227,980.28
  4. Step 4: Simplify right side
    400,066x = 125,868,063,054.99
  5. Step 5: Solve for x
    x = 125,868,063,054.99/400,066
  6. Step 6: Final answer
    x = 314,618.25

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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.