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Finding the Fourth Proportional to 303,968.60, 455,960.69 and 144,007.07

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Solution

The fourth proportional to 303,968.60, 455,960.69 and 144,007.07 is: 216,014.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,968.60 : 455,960.69 = 144,007.07 : x
  2. Step 2: Convert to fraction form
    303,968.60/455,960.69 = 144,007.07/x
  3. Step 3: Cross multiply
    303,968.60x = 455,960.69 × 144,007.07
  4. Step 4: Simplify right side
    303,968.60x = 65,661,561,352.31
  5. Step 5: Solve for x
    x = 65,661,561,352.31/303,968.60
  6. Step 6: Final answer
    x = 216,014.29

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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.