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Finding the Fourth Proportional to 193,021.60, 289,532.40 and 123,210.40

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Solution

The fourth proportional to 193,021.60, 289,532.40 and 123,210.40 is: 184,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,021.60 : 289,532.40 = 123,210.40 : x
  2. Step 2: Convert to fraction form
    193,021.60/289,532.40 = 123,210.40/x
  3. Step 3: Cross multiply
    193,021.60x = 289,532.40 × 123,210.40
  4. Step 4: Simplify right side
    193,021.60x = 35,673,402,816.96
  5. Step 5: Solve for x
    x = 35,673,402,816.96/193,021.60
  6. Step 6: Final answer
    x = 184,815.60

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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.