Home / 345,198.42-476,128.40-230,419.19

Finding the Fourth Proportional to 345,198.42, 476,128.40 and 230,419.19

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Solution

The fourth proportional to 345,198.42, 476,128.40 and 230,419.19 is: 317,814.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,198.42 : 476,128.40 = 230,419.19 : x
  2. Step 2: Convert to fraction form
    345,198.42/476,128.40 = 230,419.19/x
  3. Step 3: Cross multiply
    345,198.42x = 476,128.40 × 230,419.19
  4. Step 4: Simplify right side
    345,198.42x = 109,709,120,264.00
  5. Step 5: Solve for x
    x = 109,709,120,264.00/345,198.42
  6. Step 6: Final answer
    x = 317,814.67

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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.