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Finding the Fourth Proportional to 328,580.70, 492,871.05 and 151,433.70

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Solution

The fourth proportional to 328,580.70, 492,871.05 and 151,433.70 is: 227,150.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,580.70 : 492,871.05 = 151,433.70 : x
  2. Step 2: Convert to fraction form
    328,580.70/492,871.05 = 151,433.70/x
  3. Step 3: Cross multiply
    328,580.70x = 492,871.05 × 151,433.70
  4. Step 4: Simplify right side
    328,580.70x = 74,637,286,724.39
  5. Step 5: Solve for x
    x = 74,637,286,724.39/328,580.70
  6. Step 6: Final answer
    x = 227,150.55

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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.