Home / 430,726.08-646,111.44-131,183.52

Finding the Fourth Proportional to 430,726.08, 646,111.44 and 131,183.52

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Solution

The fourth proportional to 430,726.08, 646,111.44 and 131,183.52 is: 196,782.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,726.08 : 646,111.44 = 131,183.52 : x
  2. Step 2: Convert to fraction form
    430,726.08/646,111.44 = 131,183.52/x
  3. Step 3: Cross multiply
    430,726.08x = 646,111.44 × 131,183.52
  4. Step 4: Simplify right side
    430,726.08x = 84,759,173,011.47
  5. Step 5: Solve for x
    x = 84,759,173,011.47/430,726.08
  6. Step 6: Final answer
    x = 196,782.08

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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.