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Finding the Fourth Proportional to 162,256.88, 243,392 and 55,714

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Solution

The fourth proportional to 162,256.88, 243,392 and 55,714 is: 83,573.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,256.88 : 243,392 = 55,714 : x
  2. Step 2: Convert to fraction form
    162,256.88/243,392 = 55,714/x
  3. Step 3: Cross multiply
    162,256.88x = 243,392 × 55,714
  4. Step 4: Simplify right side
    162,256.88x = 13,560,341,888
  5. Step 5: Solve for x
    x = 13,560,341,888/162,256.88
  6. Step 6: Final answer
    x = 83,573.29

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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.