Home / 430,721.52-646,174.59-131,226.24

Finding the Fourth Proportional to 430,721.52, 646,174.59 and 131,226.24

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Solution

The fourth proportional to 430,721.52, 646,174.59 and 131,226.24 is: 196,867.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,721.52 : 646,174.59 = 131,226.24 : x
  2. Step 2: Convert to fraction form
    430,721.52/646,174.59 = 131,226.24/x
  3. Step 3: Cross multiply
    430,721.52x = 646,174.59 × 131,226.24
  4. Step 4: Simplify right side
    430,721.52x = 84,795,061,829.24
  5. Step 5: Solve for x
    x = 84,795,061,829.24/430,721.52
  6. Step 6: Final answer
    x = 196,867.48

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1.5x scale

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.