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Finding the Fourth Proportional to 173,303.21, 239,030.49 and 109,579.50

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Solution

The fourth proportional to 173,303.21, 239,030.49 and 109,579.50 is: 151,138.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,303.21 : 239,030.49 = 109,579.50 : x
  2. Step 2: Convert to fraction form
    173,303.21/239,030.49 = 109,579.50/x
  3. Step 3: Cross multiply
    173,303.21x = 239,030.49 × 109,579.50
  4. Step 4: Simplify right side
    173,303.21x = 26,192,841,989.88
  5. Step 5: Solve for x
    x = 26,192,841,989.88/173,303.21
  6. Step 6: Final answer
    x = 151,138.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.