Home / 280,145.16-386,598.96-152,819.64

Finding the Fourth Proportional to 280,145.16, 386,598.96 and 152,819.64

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Solution

The fourth proportional to 280,145.16, 386,598.96 and 152,819.64 is: 210,890.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,145.16 : 386,598.96 = 152,819.64 : x
  2. Step 2: Convert to fraction form
    280,145.16/386,598.96 = 152,819.64/x
  3. Step 3: Cross multiply
    280,145.16x = 386,598.96 × 152,819.64
  4. Step 4: Simplify right side
    280,145.16x = 59,079,913,891.57
  5. Step 5: Solve for x
    x = 59,079,913,891.57/280,145.16
  6. Step 6: Final answer
    x = 210,890.36

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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.