Home / 345,884.48-515,388.13-308,154.63

Finding the Fourth Proportional to 345,884.48, 515,388.13 and 308,154.63

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Solution

The fourth proportional to 345,884.48, 515,388.13 and 308,154.63 is: 459,168.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,884.48 : 515,388.13 = 308,154.63 : x
  2. Step 2: Convert to fraction form
    345,884.48/515,388.13 = 308,154.63/x
  3. Step 3: Cross multiply
    345,884.48x = 515,388.13 × 308,154.63
  4. Step 4: Simplify right side
    345,884.48x = 158,819,238,506.54
  5. Step 5: Solve for x
    x = 158,819,238,506.54/345,884.48
  6. Step 6: Final answer
    x = 459,168.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.