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Finding the Fourth Proportional to 486,149.40, 729,219.30 and 153,725.40

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Solution

The fourth proportional to 486,149.40, 729,219.30 and 153,725.40 is: 230,586.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,149.40 : 729,219.30 = 153,725.40 : x
  2. Step 2: Convert to fraction form
    486,149.40/729,219.30 = 153,725.40/x
  3. Step 3: Cross multiply
    486,149.40x = 729,219.30 × 153,725.40
  4. Step 4: Simplify right side
    486,149.40x = 112,099,528,580.22
  5. Step 5: Solve for x
    x = 112,099,528,580.22/486,149.40
  6. Step 6: Final answer
    x = 230,586.58

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.