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Finding the Fourth Proportional to 162,889.96, 243,220.89 and 145,913.44

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Solution

The fourth proportional to 162,889.96, 243,220.89 and 145,913.44 is: 217,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,889.96 : 243,220.89 = 145,913.44 : x
  2. Step 2: Convert to fraction form
    162,889.96/243,220.89 = 145,913.44/x
  3. Step 3: Cross multiply
    162,889.96x = 243,220.89 × 145,913.44
  4. Step 4: Simplify right side
    162,889.96x = 35,489,196,739.76
  5. Step 5: Solve for x
    x = 35,489,196,739.76/162,889.96
  6. Step 6: Final answer
    x = 217,872.22

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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.