Home / 280,341.14-386,834.60-157,818.05

Finding the Fourth Proportional to 280,341.14, 386,834.60 and 157,818.05

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Solution

The fourth proportional to 280,341.14, 386,834.60 and 157,818.05 is: 217,768.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,341.14 : 386,834.60 = 157,818.05 : x
  2. Step 2: Convert to fraction form
    280,341.14/386,834.60 = 157,818.05/x
  3. Step 3: Cross multiply
    280,341.14x = 386,834.60 × 157,818.05
  4. Step 4: Simplify right side
    280,341.14x = 61,049,479,521.27
  5. Step 5: Solve for x
    x = 61,049,479,521.27/280,341.14
  6. Step 6: Final answer
    x = 217,768.54

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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.