Home / 280,039.07-386,341.01-162,088.43

Finding the Fourth Proportional to 280,039.07, 386,341.01 and 162,088.43

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Solution

The fourth proportional to 280,039.07, 386,341.01 and 162,088.43 is: 223,616.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,039.07 : 386,341.01 = 162,088.43 : x
  2. Step 2: Convert to fraction form
    280,039.07/386,341.01 = 162,088.43/x
  3. Step 3: Cross multiply
    280,039.07x = 386,341.01 × 162,088.43
  4. Step 4: Simplify right side
    280,039.07x = 62,621,405,621.20
  5. Step 5: Solve for x
    x = 62,621,405,621.20/280,039.07
  6. Step 6: Final answer
    x = 223,616.67

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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.