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Finding the Fourth Proportional to 328,506.60, 492,759.90 and 151,359.60

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Solution

The fourth proportional to 328,506.60, 492,759.90 and 151,359.60 is: 227,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,506.60 : 492,759.90 = 151,359.60 : x
  2. Step 2: Convert to fraction form
    328,506.60/492,759.90 = 151,359.60/x
  3. Step 3: Cross multiply
    328,506.60x = 492,759.90 × 151,359.60
  4. Step 4: Simplify right side
    328,506.60x = 74,583,941,360.04
  5. Step 5: Solve for x
    x = 74,583,941,360.04/328,506.60
  6. Step 6: Final answer
    x = 227,039.40

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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.