Home / 431,014.61-646,623.01-131,495.08

Finding the Fourth Proportional to 431,014.61, 646,623.01 and 131,495.08

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Solution

The fourth proportional to 431,014.61, 646,623.01 and 131,495.08 is: 197,273.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,014.61 : 646,623.01 = 131,495.08 : x
  2. Step 2: Convert to fraction form
    431,014.61/646,623.01 = 131,495.08/x
  3. Step 3: Cross multiply
    431,014.61x = 646,623.01 × 131,495.08
  4. Step 4: Simplify right side
    431,014.61x = 85,027,744,429.79
  5. Step 5: Solve for x
    x = 85,027,744,429.79/431,014.61
  6. Step 6: Final answer
    x = 197,273.46

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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.