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Finding the Fourth Proportional to 297,014.22, 445,603.62 and 137,139

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Solution

The fourth proportional to 297,014.22, 445,603.62 and 137,139 is: 205,746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,014.22 : 445,603.62 = 137,139 : x
  2. Step 2: Convert to fraction form
    297,014.22/445,603.62 = 137,139/x
  3. Step 3: Cross multiply
    297,014.22x = 445,603.62 × 137,139
  4. Step 4: Simplify right side
    297,014.22x = 61,109,634,843.18
  5. Step 5: Solve for x
    x = 61,109,634,843.18/297,014.22
  6. Step 6: Final answer
    x = 205,746.50

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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.