Home / 280,844.57-387,565.53-151,782.67

Finding the Fourth Proportional to 280,844.57, 387,565.53 and 151,782.67

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Solution

The fourth proportional to 280,844.57, 387,565.53 and 151,782.67 is: 209,460.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,844.57 : 387,565.53 = 151,782.67 : x
  2. Step 2: Convert to fraction form
    280,844.57/387,565.53 = 151,782.67/x
  3. Step 3: Cross multiply
    280,844.57x = 387,565.53 × 151,782.67
  4. Step 4: Simplify right side
    280,844.57x = 58,825,729,974.45
  5. Step 5: Solve for x
    x = 58,825,729,974.45/280,844.57
  6. Step 6: Final answer
    x = 209,460.09

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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.