Home / 289,736.73-434,724.66-156,460.05

Finding the Fourth Proportional to 289,736.73, 434,724.66 and 156,460.05

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Solution

The fourth proportional to 289,736.73, 434,724.66 and 156,460.05 is: 234,754.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,736.73 : 434,724.66 = 156,460.05 : x
  2. Step 2: Convert to fraction form
    289,736.73/434,724.66 = 156,460.05/x
  3. Step 3: Cross multiply
    289,736.73x = 434,724.66 × 156,460.05
  4. Step 4: Simplify right side
    289,736.73x = 68,017,042,039.83
  5. Step 5: Solve for x
    x = 68,017,042,039.83/289,736.73
  6. Step 6: Final answer
    x = 234,754.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.