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Finding the Fourth Proportional to 405,987.31, 560,314.83 and 244,929.34

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Solution

The fourth proportional to 405,987.31, 560,314.83 and 244,929.34 is: 338,034.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,987.31 : 560,314.83 = 244,929.34 : x
  2. Step 2: Convert to fraction form
    405,987.31/560,314.83 = 244,929.34/x
  3. Step 3: Cross multiply
    405,987.31x = 560,314.83 × 244,929.34
  4. Step 4: Simplify right side
    405,987.31x = 137,237,541,504.11
  5. Step 5: Solve for x
    x = 137,237,541,504.11/405,987.31
  6. Step 6: Final answer
    x = 338,034.07

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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.