Home / 400,921.25-553,117.01-228,848.90

Finding the Fourth Proportional to 400,921.25, 553,117.01 and 228,848.90

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Solution

The fourth proportional to 400,921.25, 553,117.01 and 228,848.90 is: 315,723.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,921.25 : 553,117.01 = 228,848.90 : x
  2. Step 2: Convert to fraction form
    400,921.25/553,117.01 = 228,848.90/x
  3. Step 3: Cross multiply
    400,921.25x = 553,117.01 × 228,848.90
  4. Step 4: Simplify right side
    400,921.25x = 126,580,215,399.96
  5. Step 5: Solve for x
    x = 126,580,215,399.96/400,921.25
  6. Step 6: Final answer
    x = 315,723.39

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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.