Home / 280,891.06-387,629.64-153,566.62

Finding the Fourth Proportional to 280,891.06, 387,629.64 and 153,566.62

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Solution

The fourth proportional to 280,891.06, 387,629.64 and 153,566.62 is: 211,921.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,891.06 : 387,629.64 = 153,566.62 : x
  2. Step 2: Convert to fraction form
    280,891.06/387,629.64 = 153,566.62/x
  3. Step 3: Cross multiply
    280,891.06x = 387,629.64 × 153,566.62
  4. Step 4: Simplify right side
    280,891.06x = 59,526,973,626.62
  5. Step 5: Solve for x
    x = 59,526,973,626.62/280,891.06
  6. Step 6: Final answer
    x = 211,921.92

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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.