Home / 278,628.14-384,503.46-151,304.64

Finding the Fourth Proportional to 278,628.14, 384,503.46 and 151,304.64

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Solution

The fourth proportional to 278,628.14, 384,503.46 and 151,304.64 is: 208,798.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,628.14 : 384,503.46 = 151,304.64 : x
  2. Step 2: Convert to fraction form
    278,628.14/384,503.46 = 151,304.64/x
  3. Step 3: Cross multiply
    278,628.14x = 384,503.46 × 151,304.64
  4. Step 4: Simplify right side
    278,628.14x = 58,177,157,594.05
  5. Step 5: Solve for x
    x = 58,177,157,594.05/278,628.14
  6. Step 6: Final answer
    x = 208,798.57

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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.