Home / 278,580.93-384,435.88-151,256.62

Finding the Fourth Proportional to 278,580.93, 384,435.88 and 151,256.62

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Solution

The fourth proportional to 278,580.93, 384,435.88 and 151,256.62 is: 208,730.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,580.93 : 384,435.88 = 151,256.62 : x
  2. Step 2: Convert to fraction form
    278,580.93/384,435.88 = 151,256.62/x
  3. Step 3: Cross multiply
    278,580.93x = 384,435.88 × 151,256.62
  4. Step 4: Simplify right side
    278,580.93x = 58,148,471,815.53
  5. Step 5: Solve for x
    x = 58,148,471,815.53/278,580.93
  6. Step 6: Final answer
    x = 208,730.98

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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.