Home / 430,726.32-646,122.27-131,232.45

Finding the Fourth Proportional to 430,726.32, 646,122.27 and 131,232.45

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Solution

The fourth proportional to 430,726.32, 646,122.27 and 131,232.45 is: 196,858.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,726.32 : 646,122.27 = 131,232.45 : x
  2. Step 2: Convert to fraction form
    430,726.32/646,122.27 = 131,232.45/x
  3. Step 3: Cross multiply
    430,726.32x = 646,122.27 × 131,232.45
  4. Step 4: Simplify right side
    430,726.32x = 84,792,208,491.66
  5. Step 5: Solve for x
    x = 84,792,208,491.66/430,726.32
  6. Step 6: Final answer
    x = 196,858.67

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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.