Home / 401,556.03-602,389.59-135,392.67

Finding the Fourth Proportional to 401,556.03, 602,389.59 and 135,392.67

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Solution

The fourth proportional to 401,556.03, 602,389.59 and 135,392.67 is: 203,107.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,556.03 : 602,389.59 = 135,392.67 : x
  2. Step 2: Convert to fraction form
    401,556.03/602,389.59 = 135,392.67/x
  3. Step 3: Cross multiply
    401,556.03x = 602,389.59 × 135,392.67
  4. Step 4: Simplify right side
    401,556.03x = 81,559,134,970.31
  5. Step 5: Solve for x
    x = 81,559,134,970.31/401,556.03
  6. Step 6: Final answer
    x = 203,107.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.