Home / 278,394.21-384,185.06-151,069.82

Finding the Fourth Proportional to 278,394.21, 384,185.06 and 151,069.82

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Solution

The fourth proportional to 278,394.21, 384,185.06 and 151,069.82 is: 208,476.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,394.21 : 384,185.06 = 151,069.82 : x
  2. Step 2: Convert to fraction form
    278,394.21/384,185.06 = 151,069.82/x
  3. Step 3: Cross multiply
    278,394.21x = 384,185.06 × 151,069.82
  4. Step 4: Simplify right side
    278,394.21x = 58,038,765,184.61
  5. Step 5: Solve for x
    x = 58,038,765,184.61/278,394.21
  6. Step 6: Final answer
    x = 208,476.91

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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.