Home / 280,273.21-386,785.25-152,956.99

Finding the Fourth Proportional to 280,273.21, 386,785.25 and 152,956.99

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Solution

The fourth proportional to 280,273.21, 386,785.25 and 152,956.99 is: 211,085.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,273.21 : 386,785.25 = 152,956.99 : x
  2. Step 2: Convert to fraction form
    280,273.21/386,785.25 = 152,956.99/x
  3. Step 3: Cross multiply
    280,273.21x = 386,785.25 × 152,956.99
  4. Step 4: Simplify right side
    280,273.21x = 59,161,507,616.40
  5. Step 5: Solve for x
    x = 59,161,507,616.40/280,273.21
  6. Step 6: Final answer
    x = 211,085.13

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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.