Home / 406,260.98-609,018.24-139,958.18

Finding the Fourth Proportional to 406,260.98, 609,018.24 and 139,958.18

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Solution

The fourth proportional to 406,260.98, 609,018.24 and 139,958.18 is: 209,808.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,260.98 : 609,018.24 = 139,958.18 : x
  2. Step 2: Convert to fraction form
    406,260.98/609,018.24 = 139,958.18/x
  3. Step 3: Cross multiply
    406,260.98x = 609,018.24 × 139,958.18
  4. Step 4: Simplify right side
    406,260.98x = 85,237,084,457.20
  5. Step 5: Solve for x
    x = 85,237,084,457.20/406,260.98
  6. Step 6: Final answer
    x = 209,808.69

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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.