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Finding the Fourth Proportional to 162,248.88, 243,380 and 55,706

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Solution

The fourth proportional to 162,248.88, 243,380 and 55,706 is: 83,561.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,248.88 : 243,380 = 55,706 : x
  2. Step 2: Convert to fraction form
    162,248.88/243,380 = 55,706/x
  3. Step 3: Cross multiply
    162,248.88x = 243,380 × 55,706
  4. Step 4: Simplify right side
    162,248.88x = 13,557,726,280
  5. Step 5: Solve for x
    x = 13,557,726,280/162,248.88
  6. Step 6: Final answer
    x = 83,561.29

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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.