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Finding the Fourth Proportional to 337,973.40, 505,647.90 and 219,875.40

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Solution

The fourth proportional to 337,973.40, 505,647.90 and 219,875.40 is: 328,959.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,973.40 : 505,647.90 = 219,875.40 : x
  2. Step 2: Convert to fraction form
    337,973.40/505,647.90 = 219,875.40/x
  3. Step 3: Cross multiply
    337,973.40x = 505,647.90 × 219,875.40
  4. Step 4: Simplify right side
    337,973.40x = 111,179,534,271.66
  5. Step 5: Solve for x
    x = 111,179,534,271.66/337,973.40
  6. Step 6: Final answer
    x = 328,959.42

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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.