Home / 430,835.72-646,277.72-131,326.08

Finding the Fourth Proportional to 430,835.72, 646,277.72 and 131,326.08

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Solution

The fourth proportional to 430,835.72, 646,277.72 and 131,326.08 is: 196,996.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,835.72 : 646,277.72 = 131,326.08 : x
  2. Step 2: Convert to fraction form
    430,835.72/646,277.72 = 131,326.08/x
  3. Step 3: Cross multiply
    430,835.72x = 646,277.72 × 131,326.08
  4. Step 4: Simplify right side
    430,835.72x = 84,873,119,558.94
  5. Step 5: Solve for x
    x = 84,873,119,558.94/430,835.72
  6. Step 6: Final answer
    x = 196,996.48

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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.