Home / 278,927.80-384,922.70-151,603.36

Finding the Fourth Proportional to 278,927.80, 384,922.70 and 151,603.36

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Solution

The fourth proportional to 278,927.80, 384,922.70 and 151,603.36 is: 209,213.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,927.80 : 384,922.70 = 151,603.36 : x
  2. Step 2: Convert to fraction form
    278,927.80/384,922.70 = 151,603.36/x
  3. Step 3: Cross multiply
    278,927.80x = 384,922.70 × 151,603.36
  4. Step 4: Simplify right side
    278,927.80x = 58,355,574,660.27
  5. Step 5: Solve for x
    x = 58,355,574,660.27/278,927.80
  6. Step 6: Final answer
    x = 209,213.91

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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.