Home / 280,140.68-386,596.92-152,818.94

Finding the Fourth Proportional to 280,140.68, 386,596.92 and 152,818.94

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Solution

The fourth proportional to 280,140.68, 386,596.92 and 152,818.94 is: 210,891.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,140.68 : 386,596.92 = 152,818.94 : x
  2. Step 2: Convert to fraction form
    280,140.68/386,596.92 = 152,818.94/x
  3. Step 3: Cross multiply
    280,140.68x = 386,596.92 × 152,818.94
  4. Step 4: Simplify right side
    280,140.68x = 59,079,331,521.66
  5. Step 5: Solve for x
    x = 59,079,331,521.66/280,140.68
  6. Step 6: Final answer
    x = 210,891.65

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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.