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Finding the Fourth Proportional to 289,632.54, 434,447.93 and 73,490.85

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Solution

The fourth proportional to 289,632.54, 434,447.93 and 73,490.85 is: 110,236.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,632.54 : 434,447.93 = 73,490.85 : x
  2. Step 2: Convert to fraction form
    289,632.54/434,447.93 = 73,490.85/x
  3. Step 3: Cross multiply
    289,632.54x = 434,447.93 × 73,490.85
  4. Step 4: Simplify right side
    289,632.54x = 31,927,947,288.99
  5. Step 5: Solve for x
    x = 31,927,947,288.99/289,632.54
  6. Step 6: Final answer
    x = 110,236.05

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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.