Home / 499,546.08-749,366.31-139,716.81

Finding the Fourth Proportional to 499,546.08, 749,366.31 and 139,716.81

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Solution

The fourth proportional to 499,546.08, 749,366.31 and 139,716.81 is: 209,588.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,546.08 : 749,366.31 = 139,716.81 : x
  2. Step 2: Convert to fraction form
    499,546.08/749,366.31 = 139,716.81/x
  3. Step 3: Cross multiply
    499,546.08x = 749,366.31 × 139,716.81
  4. Step 4: Simplify right side
    499,546.08x = 104,699,070,354.67
  5. Step 5: Solve for x
    x = 104,699,070,354.67/499,546.08
  6. Step 6: Final answer
    x = 209,588.41

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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.