Home / 257,874.12-355,872.42-144,705.24

Finding the Fourth Proportional to 257,874.12, 355,872.42 and 144,705.24

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Solution

The fourth proportional to 257,874.12, 355,872.42 and 144,705.24 is: 199,696.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,874.12 : 355,872.42 = 144,705.24 : x
  2. Step 2: Convert to fraction form
    257,874.12/355,872.42 = 144,705.24/x
  3. Step 3: Cross multiply
    257,874.12x = 355,872.42 × 144,705.24
  4. Step 4: Simplify right side
    257,874.12x = 51,496,603,945.48
  5. Step 5: Solve for x
    x = 51,496,603,945.48/257,874.12
  6. Step 6: Final answer
    x = 199,696.67

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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.