Home / 280,195.47-386,653.91-159,366.15

Finding the Fourth Proportional to 280,195.47, 386,653.91 and 159,366.15

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Solution

The fourth proportional to 280,195.47, 386,653.91 and 159,366.15 is: 219,916.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,195.47 : 386,653.91 = 159,366.15 : x
  2. Step 2: Convert to fraction form
    280,195.47/386,653.91 = 159,366.15/x
  3. Step 3: Cross multiply
    280,195.47x = 386,653.91 × 159,366.15
  4. Step 4: Simplify right side
    280,195.47x = 61,619,544,222.32
  5. Step 5: Solve for x
    x = 61,619,544,222.32/280,195.47
  6. Step 6: Final answer
    x = 219,916.28

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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.