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Finding the Fourth Proportional to 355,267.71, 531,946.64 and 270,624.66

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Solution

The fourth proportional to 355,267.71, 531,946.64 and 270,624.66 is: 405,209.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,267.71 : 531,946.64 = 270,624.66 : x
  2. Step 2: Convert to fraction form
    355,267.71/531,946.64 = 270,624.66/x
  3. Step 3: Cross multiply
    355,267.71x = 531,946.64 × 270,624.66
  4. Step 4: Simplify right side
    355,267.71x = 143,957,877,235.02
  5. Step 5: Solve for x
    x = 143,957,877,235.02/355,267.71
  6. Step 6: Final answer
    x = 405,209.57

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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.