Home / 431,070.23-646,605.35-131,552.34

Finding the Fourth Proportional to 431,070.23, 646,605.35 and 131,552.34

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Solution

The fourth proportional to 431,070.23, 646,605.35 and 131,552.34 is: 197,328.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,070.23 : 646,605.35 = 131,552.34 : x
  2. Step 2: Convert to fraction form
    431,070.23/646,605.35 = 131,552.34/x
  3. Step 3: Cross multiply
    431,070.23x = 646,605.35 × 131,552.34
  4. Step 4: Simplify right side
    431,070.23x = 85,062,446,191.26
  5. Step 5: Solve for x
    x = 85,062,446,191.26/431,070.23
  6. Step 6: Final answer
    x = 197,328.51

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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.