Home / 406,257.45-609,012.98-139,954.65

Finding the Fourth Proportional to 406,257.45, 609,012.98 and 139,954.65

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Solution

The fourth proportional to 406,257.45, 609,012.98 and 139,954.65 is: 209,803.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,257.45 : 609,012.98 = 139,954.65 : x
  2. Step 2: Convert to fraction form
    406,257.45/609,012.98 = 139,954.65/x
  3. Step 3: Cross multiply
    406,257.45x = 609,012.98 × 139,954.65
  4. Step 4: Simplify right side
    406,257.45x = 85,234,197,761.58
  5. Step 5: Solve for x
    x = 85,234,197,761.58/406,257.45
  6. Step 6: Final answer
    x = 209,803.41

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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.