Home / 460,235.91-690,049.31-220,385.19

Finding the Fourth Proportional to 460,235.91, 690,049.31 and 220,385.19

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Solution

The fourth proportional to 460,235.91, 690,049.31 and 220,385.19 is: 330,431.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,235.91 : 690,049.31 = 220,385.19 : x
  2. Step 2: Convert to fraction form
    460,235.91/690,049.31 = 220,385.19/x
  3. Step 3: Cross multiply
    460,235.91x = 690,049.31 × 220,385.19
  4. Step 4: Simplify right side
    460,235.91x = 152,076,647,191.79
  5. Step 5: Solve for x
    x = 152,076,647,191.79/460,235.91
  6. Step 6: Final answer
    x = 330,431.95

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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.