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Finding the Fourth Proportional to 289,303.68, 434,024.79 and 120,730.23

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Solution

The fourth proportional to 289,303.68, 434,024.79 and 120,730.23 is: 181,124.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,303.68 : 434,024.79 = 120,730.23 : x
  2. Step 2: Convert to fraction form
    289,303.68/434,024.79 = 120,730.23/x
  3. Step 3: Cross multiply
    289,303.68x = 434,024.79 × 120,730.23
  4. Step 4: Simplify right side
    289,303.68x = 52,399,912,722.40
  5. Step 5: Solve for x
    x = 52,399,912,722.40/289,303.68
  6. Step 6: Final answer
    x = 181,124.25

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