Home / 289,419.05-433,896.75-137,539.91

Finding the Fourth Proportional to 289,419.05, 433,896.75 and 137,539.91

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Solution

The fourth proportional to 289,419.05, 433,896.75 and 137,539.91 is: 206,199.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,419.05 : 433,896.75 = 137,539.91 : x
  2. Step 2: Convert to fraction form
    289,419.05/433,896.75 = 137,539.91/x
  3. Step 3: Cross multiply
    289,419.05x = 433,896.75 × 137,539.91
  4. Step 4: Simplify right side
    289,419.05x = 59,678,118,588.37
  5. Step 5: Solve for x
    x = 59,678,118,588.37/289,419.05
  6. Step 6: Final answer
    x = 206,199.69

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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.