Home / 280,093.08-386,528.22-152,768.28

Finding the Fourth Proportional to 280,093.08, 386,528.22 and 152,768.28

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Solution

The fourth proportional to 280,093.08, 386,528.22 and 152,768.28 is: 210,820.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,093.08 : 386,528.22 = 152,768.28 : x
  2. Step 2: Convert to fraction form
    280,093.08/386,528.22 = 152,768.28/x
  3. Step 3: Cross multiply
    280,093.08x = 386,528.22 × 152,768.28
  4. Step 4: Simplify right side
    280,093.08x = 59,049,251,340.86
  5. Step 5: Solve for x
    x = 59,049,251,340.86/280,093.08
  6. Step 6: Final answer
    x = 210,820.10

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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.