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Finding the Fourth Proportional to 162,003.70, 243,005.55 and 144,493.30

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Solution

The fourth proportional to 162,003.70, 243,005.55 and 144,493.30 is: 216,739.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,003.70 : 243,005.55 = 144,493.30 : x
  2. Step 2: Convert to fraction form
    162,003.70/243,005.55 = 144,493.30/x
  3. Step 3: Cross multiply
    162,003.70x = 243,005.55 × 144,493.30
  4. Step 4: Simplify right side
    162,003.70x = 35,112,673,837.82
  5. Step 5: Solve for x
    x = 35,112,673,837.82/162,003.70
  6. Step 6: Final answer
    x = 216,739.95

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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.