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Finding the Fourth Proportional to 314,187.80, 438,929.80 and 314,187.80

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Solution

The fourth proportional to 314,187.80, 438,929.80 and 314,187.80 is: 438,929.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,187.80 : 438,929.80 = 314,187.80 : x
  2. Step 2: Convert to fraction form
    314,187.80/438,929.80 = 314,187.80/x
  3. Step 3: Cross multiply
    314,187.80x = 438,929.80 × 314,187.80
  4. Step 4: Simplify right side
    314,187.80x = 137,906,388,216.44
  5. Step 5: Solve for x
    x = 137,906,388,216.44/314,187.80
  6. Step 6: Final answer
    x = 438,929.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.