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Finding the Fourth Proportional to 340,476.08, 469,352.90 and 217,950.42

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Solution

The fourth proportional to 340,476.08, 469,352.90 and 217,950.42 is: 300,448.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,476.08 : 469,352.90 = 217,950.42 : x
  2. Step 2: Convert to fraction form
    340,476.08/469,352.90 = 217,950.42/x
  3. Step 3: Cross multiply
    340,476.08x = 469,352.90 × 217,950.42
  4. Step 4: Simplify right side
    340,476.08x = 102,295,661,683.22
  5. Step 5: Solve for x
    x = 102,295,661,683.22/340,476.08
  6. Step 6: Final answer
    x = 300,448.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.