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Finding the Fourth Proportional to 292,449.48, 438,292.01 and 211,668.50

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Solution

The fourth proportional to 292,449.48, 438,292.01 and 211,668.50 is: 317,226.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,449.48 : 438,292.01 = 211,668.50 : x
  2. Step 2: Convert to fraction form
    292,449.48/438,292.01 = 211,668.50/x
  3. Step 3: Cross multiply
    292,449.48x = 438,292.01 × 211,668.50
  4. Step 4: Simplify right side
    292,449.48x = 92,772,612,318.69
  5. Step 5: Solve for x
    x = 92,772,612,318.69/292,449.48
  6. Step 6: Final answer
    x = 317,226.11

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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.