Home / 642,381.19-963,572.49-193,102.02

Finding the Fourth Proportional to 642,381.19, 963,572.49 and 193,102.02

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Solution

The fourth proportional to 642,381.19, 963,572.49 and 193,102.02 is: 289,653.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,381.19 : 963,572.49 = 193,102.02 : x
  2. Step 2: Convert to fraction form
    642,381.19/963,572.49 = 193,102.02/x
  3. Step 3: Cross multiply
    642,381.19x = 963,572.49 × 193,102.02
  4. Step 4: Simplify right side
    642,381.19x = 186,067,794,235.43
  5. Step 5: Solve for x
    x = 186,067,794,235.43/642,381.19
  6. Step 6: Final answer
    x = 289,653.24

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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.