Home / 280,323.35-386,890.52-178,242.39

Finding the Fourth Proportional to 280,323.35, 386,890.52 and 178,242.39

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Solution

The fourth proportional to 280,323.35, 386,890.52 and 178,242.39 is: 246,002.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,323.35 : 386,890.52 = 178,242.39 : x
  2. Step 2: Convert to fraction form
    280,323.35/386,890.52 = 178,242.39/x
  3. Step 3: Cross multiply
    280,323.35x = 386,890.52 × 178,242.39
  4. Step 4: Simplify right side
    280,323.35x = 68,960,290,061.93
  5. Step 5: Solve for x
    x = 68,960,290,061.93/280,323.35
  6. Step 6: Final answer
    x = 246,002.67

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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.