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Finding the Fourth Proportional to 303,983.40, 456,001.02 and 79,373.64

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Solution

The fourth proportional to 303,983.40, 456,001.02 and 79,373.64 is: 119,067.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,983.40 : 456,001.02 = 79,373.64 : x
  2. Step 2: Convert to fraction form
    303,983.40/456,001.02 = 79,373.64/x
  3. Step 3: Cross multiply
    303,983.40x = 456,001.02 × 79,373.64
  4. Step 4: Simplify right side
    303,983.40x = 36,194,460,801.11
  5. Step 5: Solve for x
    x = 36,194,460,801.11/303,983.40
  6. Step 6: Final answer
    x = 119,067.23

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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.