Home / 690,766.50-1,036,208.08-192,130.50

Finding the Fourth Proportional to 690,766.50, 1,036,208.08 and 192,130.50

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Solution

The fourth proportional to 690,766.50, 1,036,208.08 and 192,130.50 is: 288,211.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,766.50 : 1,036,208.08 = 192,130.50 : x
  2. Step 2: Convert to fraction form
    690,766.50/1,036,208.08 = 192,130.50/x
  3. Step 3: Cross multiply
    690,766.50x = 1,036,208.08 × 192,130.50
  4. Step 4: Simplify right side
    690,766.50x = 199,087,176,514.44
  5. Step 5: Solve for x
    x = 199,087,176,514.44/690,766.50
  6. Step 6: Final answer
    x = 288,211.97

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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.