Home / 278,472.47-384,292.44-151,148.12

Finding the Fourth Proportional to 278,472.47, 384,292.44 and 151,148.12

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Solution

The fourth proportional to 278,472.47, 384,292.44 and 151,148.12 is: 208,584.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,472.47 : 384,292.44 = 151,148.12 : x
  2. Step 2: Convert to fraction form
    278,472.47/384,292.44 = 151,148.12/x
  3. Step 3: Cross multiply
    278,472.47x = 384,292.44 × 151,148.12
  4. Step 4: Simplify right side
    278,472.47x = 58,085,077,914.75
  5. Step 5: Solve for x
    x = 58,085,077,914.75/278,472.47
  6. Step 6: Final answer
    x = 208,584.64

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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.