Home / 328,501.38-492,839.67-103,866.03

Finding the Fourth Proportional to 328,501.38, 492,839.67 and 103,866.03

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Solution

The fourth proportional to 328,501.38, 492,839.67 and 103,866.03 is: 155,826.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,501.38 : 492,839.67 = 103,866.03 : x
  2. Step 2: Convert to fraction form
    328,501.38/492,839.67 = 103,866.03/x
  3. Step 3: Cross multiply
    328,501.38x = 492,839.67 × 103,866.03
  4. Step 4: Simplify right side
    328,501.38x = 51,189,299,949.41
  5. Step 5: Solve for x
    x = 51,189,299,949.41/328,501.38
  6. Step 6: Final answer
    x = 155,826.74

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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.