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Finding the Fourth Proportional to 151,479.60, 209,033.40 and 83,483.28

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Solution

The fourth proportional to 151,479.60, 209,033.40 and 83,483.28 is: 115,202.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,479.60 : 209,033.40 = 83,483.28 : x
  2. Step 2: Convert to fraction form
    151,479.60/209,033.40 = 83,483.28/x
  3. Step 3: Cross multiply
    151,479.60x = 209,033.40 × 83,483.28
  4. Step 4: Simplify right side
    151,479.60x = 17,450,793,861.55
  5. Step 5: Solve for x
    x = 17,450,793,861.55/151,479.60
  6. Step 6: Final answer
    x = 115,202.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.