Home / 430,827.80-646,241.70-164,451.20

Finding the Fourth Proportional to 430,827.80, 646,241.70 and 164,451.20

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Solution

The fourth proportional to 430,827.80, 646,241.70 and 164,451.20 is: 246,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,827.80 : 646,241.70 = 164,451.20 : x
  2. Step 2: Convert to fraction form
    430,827.80/646,241.70 = 164,451.20/x
  3. Step 3: Cross multiply
    430,827.80x = 646,241.70 × 164,451.20
  4. Step 4: Simplify right side
    430,827.80x = 106,275,223,055.04
  5. Step 5: Solve for x
    x = 106,275,223,055.04/430,827.80
  6. Step 6: Final answer
    x = 246,676.80

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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.