Home / 280,913.28-387,660.48-153,589.92

Finding the Fourth Proportional to 280,913.28, 387,660.48 and 153,589.92

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Solution

The fourth proportional to 280,913.28, 387,660.48 and 153,589.92 is: 211,954.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,913.28 : 387,660.48 = 153,589.92 : x
  2. Step 2: Convert to fraction form
    280,913.28/387,660.48 = 153,589.92/x
  3. Step 3: Cross multiply
    280,913.28x = 387,660.48 × 153,589.92
  4. Step 4: Simplify right side
    280,913.28x = 59,540,742,110.36
  5. Step 5: Solve for x
    x = 59,540,742,110.36/280,913.28
  6. Step 6: Final answer
    x = 211,954.17

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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.