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Finding the Fourth Proportional to 288,374.54, 397,955.61 and 159,313.01

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Solution

The fourth proportional to 288,374.54, 397,955.61 and 159,313.01 is: 219,851.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,374.54 : 397,955.61 = 159,313.01 : x
  2. Step 2: Convert to fraction form
    288,374.54/397,955.61 = 159,313.01/x
  3. Step 3: Cross multiply
    288,374.54x = 397,955.61 × 159,313.01
  4. Step 4: Simplify right side
    288,374.54x = 63,399,504,085.71
  5. Step 5: Solve for x
    x = 63,399,504,085.71/288,374.54
  6. Step 6: Final answer
    x = 219,851.26

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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.