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Finding the Fourth Proportional to 253,004.16, 378,718.88 and 159,313.12

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Solution

The fourth proportional to 253,004.16, 378,718.88 and 159,313.12 is: 238,473.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,004.16 : 378,718.88 = 159,313.12 : x
  2. Step 2: Convert to fraction form
    253,004.16/378,718.88 = 159,313.12/x
  3. Step 3: Cross multiply
    253,004.16x = 378,718.88 × 159,313.12
  4. Step 4: Simplify right side
    253,004.16x = 60,334,886,375.71
  5. Step 5: Solve for x
    x = 60,334,886,375.71/253,004.16
  6. Step 6: Final answer
    x = 238,473.89

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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.