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Finding the Fourth Proportional to 353,493.88, 530,172.37 and 137,352.23

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Solution

The fourth proportional to 353,493.88, 530,172.37 and 137,352.23 is: 206,001.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,493.88 : 530,172.37 = 137,352.23 : x
  2. Step 2: Convert to fraction form
    353,493.88/530,172.37 = 137,352.23/x
  3. Step 3: Cross multiply
    353,493.88x = 530,172.37 × 137,352.23
  4. Step 4: Simplify right side
    353,493.88x = 72,820,357,303.89
  5. Step 5: Solve for x
    x = 72,820,357,303.89/353,493.88
  6. Step 6: Final answer
    x = 206,001.75

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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.