Home / 278,389.26-384,178.18-151,064.86

Finding the Fourth Proportional to 278,389.26, 384,178.18 and 151,064.86

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Solution

The fourth proportional to 278,389.26, 384,178.18 and 151,064.86 is: 208,470.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,389.26 : 384,178.18 = 151,064.86 : x
  2. Step 2: Convert to fraction form
    278,389.26/384,178.18 = 151,064.86/x
  3. Step 3: Cross multiply
    278,389.26x = 384,178.18 × 151,064.86
  4. Step 4: Simplify right side
    278,389.26x = 58,035,822,976.75
  5. Step 5: Solve for x
    x = 58,035,822,976.75/278,389.26
  6. Step 6: Final answer
    x = 208,470.05

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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.