Home / 400,221.80-552,319.73-228,165.21

Finding the Fourth Proportional to 400,221.80, 552,319.73 and 228,165.21

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Solution

The fourth proportional to 400,221.80, 552,319.73 and 228,165.21 is: 314,875.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,221.80 : 552,319.73 = 228,165.21 : x
  2. Step 2: Convert to fraction form
    400,221.80/552,319.73 = 228,165.21/x
  3. Step 3: Cross multiply
    400,221.80x = 552,319.73 × 228,165.21
  4. Step 4: Simplify right side
    400,221.80x = 126,020,147,182.59
  5. Step 5: Solve for x
    x = 126,020,147,182.59/400,221.80
  6. Step 6: Final answer
    x = 314,875.77

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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.