Home / 278,510.06-384,344.37-151,185.74

Finding the Fourth Proportional to 278,510.06, 384,344.37 and 151,185.74

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Solution

The fourth proportional to 278,510.06, 384,344.37 and 151,185.74 is: 208,636.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,510.06 : 384,344.37 = 151,185.74 : x
  2. Step 2: Convert to fraction form
    278,510.06/384,344.37 = 151,185.74/x
  3. Step 3: Cross multiply
    278,510.06x = 384,344.37 × 151,185.74
  4. Step 4: Simplify right side
    278,510.06x = 58,107,387,993.28
  5. Step 5: Solve for x
    x = 58,107,387,993.28/278,510.06
  6. Step 6: Final answer
    x = 208,636.59

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1.5x scale

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.