Home / 289,631.70-399,669.93-162,282.69

Finding the Fourth Proportional to 289,631.70, 399,669.93 and 162,282.69

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Solution

The fourth proportional to 289,631.70, 399,669.93 and 162,282.69 is: 223,937.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,631.70 : 399,669.93 = 162,282.69 : x
  2. Step 2: Convert to fraction form
    289,631.70/399,669.93 = 162,282.69/x
  3. Step 3: Cross multiply
    289,631.70x = 399,669.93 × 162,282.69
  4. Step 4: Simplify right side
    289,631.70x = 64,859,511,352.51
  5. Step 5: Solve for x
    x = 64,859,511,352.51/289,631.70
  6. Step 6: Final answer
    x = 223,937.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.