Home / 308,929.80-463,488.27-129,102.51

Finding the Fourth Proportional to 308,929.80, 463,488.27 and 129,102.51

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Solution

The fourth proportional to 308,929.80, 463,488.27 and 129,102.51 is: 193,692.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,929.80 : 463,488.27 = 129,102.51 : x
  2. Step 2: Convert to fraction form
    308,929.80/463,488.27 = 129,102.51/x
  3. Step 3: Cross multiply
    308,929.80x = 463,488.27 × 129,102.51
  4. Step 4: Simplify right side
    308,929.80x = 59,837,499,012.56
  5. Step 5: Solve for x
    x = 59,837,499,012.56/308,929.80
  6. Step 6: Final answer
    x = 193,692.87

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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.