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Finding the Fourth Proportional to 180,012.79, 270,019.19 and 55,353.79

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Solution

The fourth proportional to 180,012.79, 270,019.19 and 55,353.79 is: 83,030.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,012.79 : 270,019.19 = 55,353.79 : x
  2. Step 2: Convert to fraction form
    180,012.79/270,019.19 = 55,353.79/x
  3. Step 3: Cross multiply
    180,012.79x = 270,019.19 × 55,353.79
  4. Step 4: Simplify right side
    180,012.79x = 14,946,585,539.23
  5. Step 5: Solve for x
    x = 14,946,585,539.23/180,012.79
  6. Step 6: Final answer
    x = 83,030.69

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1.5x scale

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.