Home / 278,866.15-384,833.45-151,541.73

Finding the Fourth Proportional to 278,866.15, 384,833.45 and 151,541.73

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Solution

The fourth proportional to 278,866.15, 384,833.45 and 151,541.73 is: 209,126.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,866.15 : 384,833.45 = 151,541.73 : x
  2. Step 2: Convert to fraction form
    278,866.15/384,833.45 = 151,541.73/x
  3. Step 3: Cross multiply
    278,866.15x = 384,833.45 × 151,541.73
  4. Step 4: Simplify right side
    278,866.15x = 58,318,327,153.72
  5. Step 5: Solve for x
    x = 58,318,327,153.72/278,866.15
  6. Step 6: Final answer
    x = 209,126.59

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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.