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Finding the Fourth Proportional to 201,013.28, 301,519.62 and 156,673.28

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Solution

The fourth proportional to 201,013.28, 301,519.62 and 156,673.28 is: 235,009.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,013.28 : 301,519.62 = 156,673.28 : x
  2. Step 2: Convert to fraction form
    201,013.28/301,519.62 = 156,673.28/x
  3. Step 3: Cross multiply
    201,013.28x = 301,519.62 × 156,673.28
  4. Step 4: Simplify right side
    201,013.28x = 47,240,066,342.16
  5. Step 5: Solve for x
    x = 47,240,066,342.16/201,013.28
  6. Step 6: Final answer
    x = 235,009.68

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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.