Home / 401,025.56-553,390.80-228,963.20

Finding the Fourth Proportional to 401,025.56, 553,390.80 and 228,963.20

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Solution

The fourth proportional to 401,025.56, 553,390.80 and 228,963.20 is: 315,955.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,025.56 : 553,390.80 = 228,963.20 : x
  2. Step 2: Convert to fraction form
    401,025.56/553,390.80 = 228,963.20/x
  3. Step 3: Cross multiply
    401,025.56x = 553,390.80 × 228,963.20
  4. Step 4: Simplify right side
    401,025.56x = 126,706,128,418.56
  5. Step 5: Solve for x
    x = 126,706,128,418.56/401,025.56
  6. Step 6: Final answer
    x = 315,955.24

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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.