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Finding the Fourth Proportional to 328,141.80, 492,431.40 and 150,557.40

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Solution

The fourth proportional to 328,141.80, 492,431.40 and 150,557.40 is: 225,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,141.80 : 492,431.40 = 150,557.40 : x
  2. Step 2: Convert to fraction form
    328,141.80/492,431.40 = 150,557.40/x
  3. Step 3: Cross multiply
    328,141.80x = 492,431.40 × 150,557.40
  4. Step 4: Simplify right side
    328,141.80x = 74,139,191,262.36
  5. Step 5: Solve for x
    x = 74,139,191,262.36/328,141.80
  6. Step 6: Final answer
    x = 225,936.44

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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.