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Finding the Fourth Proportional to 328,101.80, 492,152.70 and 162,213.80

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Solution

The fourth proportional to 328,101.80, 492,152.70 and 162,213.80 is: 243,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,101.80 : 492,152.70 = 162,213.80 : x
  2. Step 2: Convert to fraction form
    328,101.80/492,152.70 = 162,213.80/x
  3. Step 3: Cross multiply
    328,101.80x = 492,152.70 × 162,213.80
  4. Step 4: Simplify right side
    328,101.80x = 79,833,959,647.26
  5. Step 5: Solve for x
    x = 79,833,959,647.26/328,101.80
  6. Step 6: Final answer
    x = 243,320.70

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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.