Home / 278,450.40-384,261.93-151,126

Finding the Fourth Proportional to 278,450.40, 384,261.93 and 151,126

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Solution

The fourth proportional to 278,450.40, 384,261.93 and 151,126 is: 208,554.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,450.40 : 384,261.93 = 151,126 : x
  2. Step 2: Convert to fraction form
    278,450.40/384,261.93 = 151,126/x
  3. Step 3: Cross multiply
    278,450.40x = 384,261.93 × 151,126
  4. Step 4: Simplify right side
    278,450.40x = 58,071,968,433.18
  5. Step 5: Solve for x
    x = 58,071,968,433.18/278,450.40
  6. Step 6: Final answer
    x = 208,554.09

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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.