Home / 426,288.40-639,197.49-173,504

Finding the Fourth Proportional to 426,288.40, 639,197.49 and 173,504

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Solution

The fourth proportional to 426,288.40, 639,197.49 and 173,504 is: 260,160.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,288.40 : 639,197.49 = 173,504 : x
  2. Step 2: Convert to fraction form
    426,288.40/639,197.49 = 173,504/x
  3. Step 3: Cross multiply
    426,288.40x = 639,197.49 × 173,504
  4. Step 4: Simplify right side
    426,288.40x = 110,903,321,304.96
  5. Step 5: Solve for x
    x = 110,903,321,304.96/426,288.40
  6. Step 6: Final answer
    x = 260,160.31

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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.