Home / 289,865.27-434,354.49-154,948.55

Finding the Fourth Proportional to 289,865.27, 434,354.49 and 154,948.55

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Solution

The fourth proportional to 289,865.27, 434,354.49 and 154,948.55 is: 232,185.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,865.27 : 434,354.49 = 154,948.55 : x
  2. Step 2: Convert to fraction form
    289,865.27/434,354.49 = 154,948.55/x
  3. Step 3: Cross multiply
    289,865.27x = 434,354.49 × 154,948.55
  4. Step 4: Simplify right side
    289,865.27x = 67,302,596,239.72
  5. Step 5: Solve for x
    x = 67,302,596,239.72/289,865.27
  6. Step 6: Final answer
    x = 232,185.79

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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.