Home / 279,252.63-385,366.88-151,928.79

Finding the Fourth Proportional to 279,252.63, 385,366.88 and 151,928.79

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Solution

The fourth proportional to 279,252.63, 385,366.88 and 151,928.79 is: 209,660.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,252.63 : 385,366.88 = 151,928.79 : x
  2. Step 2: Convert to fraction form
    279,252.63/385,366.88 = 151,928.79/x
  3. Step 3: Cross multiply
    279,252.63x = 385,366.88 × 151,928.79
  4. Step 4: Simplify right side
    279,252.63x = 58,548,323,024.83
  5. Step 5: Solve for x
    x = 58,548,323,024.83/279,252.63
  6. Step 6: Final answer
    x = 209,660.78

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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.