Home / 401,063.40-553,458.72-219,771.36

Finding the Fourth Proportional to 401,063.40, 553,458.72 and 219,771.36

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Solution

The fourth proportional to 401,063.40, 553,458.72 and 219,771.36 is: 303,279.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,063.40 : 553,458.72 = 219,771.36 : x
  2. Step 2: Convert to fraction form
    401,063.40/553,458.72 = 219,771.36/x
  3. Step 3: Cross multiply
    401,063.40x = 553,458.72 × 219,771.36
  4. Step 4: Simplify right side
    401,063.40x = 121,634,375,598.26
  5. Step 5: Solve for x
    x = 121,634,375,598.26/401,063.40
  6. Step 6: Final answer
    x = 303,279.67

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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.