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Finding the Fourth Proportional to 358,880.82, 537,918.99 and 145,599.22

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Solution

The fourth proportional to 358,880.82, 537,918.99 and 145,599.22 is: 218,235.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,880.82 : 537,918.99 = 145,599.22 : x
  2. Step 2: Convert to fraction form
    358,880.82/537,918.99 = 145,599.22/x
  3. Step 3: Cross multiply
    358,880.82x = 537,918.99 × 145,599.22
  4. Step 4: Simplify right side
    358,880.82x = 78,320,585,367.19
  5. Step 5: Solve for x
    x = 78,320,585,367.19/358,880.82
  6. Step 6: Final answer
    x = 218,235.64

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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.