Home / 328,208.72-492,313.08-103,586.63

Finding the Fourth Proportional to 328,208.72, 492,313.08 and 103,586.63

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Solution

The fourth proportional to 328,208.72, 492,313.08 and 103,586.63 is: 155,379.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,208.72 : 492,313.08 = 103,586.63 : x
  2. Step 2: Convert to fraction form
    328,208.72/492,313.08 = 103,586.63/x
  3. Step 3: Cross multiply
    328,208.72x = 492,313.08 × 103,586.63
  4. Step 4: Simplify right side
    328,208.72x = 50,997,052,862.12
  5. Step 5: Solve for x
    x = 50,997,052,862.12/328,208.72
  6. Step 6: Final answer
    x = 155,379.95

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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.