Home / 431,026.20-646,539.30-164,795.40

Finding the Fourth Proportional to 431,026.20, 646,539.30 and 164,795.40

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Solution

The fourth proportional to 431,026.20, 646,539.30 and 164,795.40 is: 247,193.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,026.20 : 646,539.30 = 164,795.40 : x
  2. Step 2: Convert to fraction form
    431,026.20/646,539.30 = 164,795.40/x
  3. Step 3: Cross multiply
    431,026.20x = 646,539.30 × 164,795.40
  4. Step 4: Simplify right side
    431,026.20x = 106,546,702,559.22
  5. Step 5: Solve for x
    x = 106,546,702,559.22/431,026.20
  6. Step 6: Final answer
    x = 247,193.10

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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.