Home / 278,927.31-384,924.03-151,603.20

Finding the Fourth Proportional to 278,927.31, 384,924.03 and 151,603.20

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Solution

The fourth proportional to 278,927.31, 384,924.03 and 151,603.20 is: 209,214.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,927.31 : 384,924.03 = 151,603.20 : x
  2. Step 2: Convert to fraction form
    278,927.31/384,924.03 = 151,603.20/x
  3. Step 3: Cross multiply
    278,927.31x = 384,924.03 × 151,603.20
  4. Step 4: Simplify right side
    278,927.31x = 58,355,714,704.90
  5. Step 5: Solve for x
    x = 58,355,714,704.90/278,927.31
  6. Step 6: Final answer
    x = 209,214.78

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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.