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Finding the Fourth Proportional to 289,633.79, 434,449.80 and 73,492.10

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Solution

The fourth proportional to 289,633.79, 434,449.80 and 73,492.10 is: 110,237.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,633.79 : 434,449.80 = 73,492.10 : x
  2. Step 2: Convert to fraction form
    289,633.79/434,449.80 = 73,492.10/x
  3. Step 3: Cross multiply
    289,633.79x = 434,449.80 × 73,492.10
  4. Step 4: Simplify right side
    289,633.79x = 31,928,628,146.58
  5. Step 5: Solve for x
    x = 31,928,628,146.58/289,633.79
  6. Step 6: Final answer
    x = 110,237.93

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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.