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Finding the Fourth Proportional to 162,643.44, 242,773.92 and 143,469.12

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Solution

The fourth proportional to 162,643.44, 242,773.92 and 143,469.12 is: 214,152.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,643.44 : 242,773.92 = 143,469.12 : x
  2. Step 2: Convert to fraction form
    162,643.44/242,773.92 = 143,469.12/x
  3. Step 3: Cross multiply
    162,643.44x = 242,773.92 × 143,469.12
  4. Step 4: Simplify right side
    162,643.44x = 34,830,560,661.35
  5. Step 5: Solve for x
    x = 34,830,560,661.35/162,643.44
  6. Step 6: Final answer
    x = 214,152.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.