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Finding the Fourth Proportional to 353,452.93, 530,099.55 and 100,728.00

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Solution

The fourth proportional to 353,452.93, 530,099.55 and 100,728.00 is: 151,069.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,452.93 : 530,099.55 = 100,728.00 : x
  2. Step 2: Convert to fraction form
    353,452.93/530,099.55 = 100,728.00/x
  3. Step 3: Cross multiply
    353,452.93x = 530,099.55 × 100,728.00
  4. Step 4: Simplify right side
    353,452.93x = 53,395,865,698.20
  5. Step 5: Solve for x
    x = 53,395,865,698.20/353,452.93
  6. Step 6: Final answer
    x = 151,069.24

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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.