Home / 400,057.21-552,061.36-228,012.40

Finding the Fourth Proportional to 400,057.21, 552,061.36 and 228,012.40

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Solution

The fourth proportional to 400,057.21, 552,061.36 and 228,012.40 is: 314,647.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,057.21 : 552,061.36 = 228,012.40 : x
  2. Step 2: Convert to fraction form
    400,057.21/552,061.36 = 228,012.40/x
  3. Step 3: Cross multiply
    400,057.21x = 552,061.36 × 228,012.40
  4. Step 4: Simplify right side
    400,057.21x = 125,876,835,640.86
  5. Step 5: Solve for x
    x = 125,876,835,640.86/400,057.21
  6. Step 6: Final answer
    x = 314,647.09

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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.