Home / 278,569.56-384,415.50-151,242.44

Finding the Fourth Proportional to 278,569.56, 384,415.50 and 151,242.44

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Solution

The fourth proportional to 278,569.56, 384,415.50 and 151,242.44 is: 208,708.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,569.56 : 384,415.50 = 151,242.44 : x
  2. Step 2: Convert to fraction form
    278,569.56/384,415.50 = 151,242.44/x
  3. Step 3: Cross multiply
    278,569.56x = 384,415.50 × 151,242.44
  4. Step 4: Simplify right side
    278,569.56x = 58,139,938,193.82
  5. Step 5: Solve for x
    x = 58,139,938,193.82/278,569.56
  6. Step 6: Final answer
    x = 208,708.87

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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.