Home / 228,918.65-343,427.18-77,130.81

Finding the Fourth Proportional to 228,918.65, 343,427.18 and 77,130.81

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Solution

The fourth proportional to 228,918.65, 343,427.18 and 77,130.81 is: 115,712.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,918.65 : 343,427.18 = 77,130.81 : x
  2. Step 2: Convert to fraction form
    228,918.65/343,427.18 = 77,130.81/x
  3. Step 3: Cross multiply
    228,918.65x = 343,427.18 × 77,130.81
  4. Step 4: Simplify right side
    228,918.65x = 26,488,816,183.76
  5. Step 5: Solve for x
    x = 26,488,816,183.76/228,918.65
  6. Step 6: Final answer
    x = 115,712.79

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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.