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Finding the Fourth Proportional to 192,128.50, 265,159.82 and 159,806.09

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Solution

The fourth proportional to 192,128.50, 265,159.82 and 159,806.09 is: 220,551.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,128.50 : 265,159.82 = 159,806.09 : x
  2. Step 2: Convert to fraction form
    192,128.50/265,159.82 = 159,806.09/x
  3. Step 3: Cross multiply
    192,128.50x = 265,159.82 × 159,806.09
  4. Step 4: Simplify right side
    192,128.50x = 42,374,154,522.45
  5. Step 5: Solve for x
    x = 42,374,154,522.45/192,128.50
  6. Step 6: Final answer
    x = 220,551.11

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1.5x scale

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.