Home / 400,854.35-553,178.77-219,577.52

Finding the Fourth Proportional to 400,854.35, 553,178.77 and 219,577.52

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Solution

The fourth proportional to 400,854.35, 553,178.77 and 219,577.52 is: 303,016.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,854.35 : 553,178.77 = 219,577.52 : x
  2. Step 2: Convert to fraction form
    400,854.35/553,178.77 = 219,577.52/x
  3. Step 3: Cross multiply
    400,854.35x = 553,178.77 × 219,577.52
  4. Step 4: Simplify right side
    400,854.35x = 121,465,619,118.41
  5. Step 5: Solve for x
    x = 121,465,619,118.41/400,854.35
  6. Step 6: Final answer
    x = 303,016.85

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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.