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Finding the Fourth Proportional to 292,405.27, 438,782.85 and 268,610.71

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Solution

The fourth proportional to 292,405.27, 438,782.85 and 268,610.71 is: 403,076.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,405.27 : 438,782.85 = 268,610.71 : x
  2. Step 2: Convert to fraction form
    292,405.27/438,782.85 = 268,610.71/x
  3. Step 3: Cross multiply
    292,405.27x = 438,782.85 × 268,610.71
  4. Step 4: Simplify right side
    292,405.27x = 117,861,772,874.32
  5. Step 5: Solve for x
    x = 117,861,772,874.32/292,405.27
  6. Step 6: Final answer
    x = 403,076.77

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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.