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Finding the Fourth Proportional to 353,827.95, 530,960.63 and 143,467.71

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Solution

The fourth proportional to 353,827.95, 530,960.63 and 143,467.71 is: 215,290.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,827.95 : 530,960.63 = 143,467.71 : x
  2. Step 2: Convert to fraction form
    353,827.95/530,960.63 = 143,467.71/x
  3. Step 3: Cross multiply
    353,827.95x = 530,960.63 × 143,467.71
  4. Step 4: Simplify right side
    353,827.95x = 76,175,704,968.92
  5. Step 5: Solve for x
    x = 76,175,704,968.92/353,827.95
  6. Step 6: Final answer
    x = 215,290.24

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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.