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Finding the Fourth Proportional to 268,313.65, 402,470.48 and 143,897.65

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Solution

The fourth proportional to 268,313.65, 402,470.48 and 143,897.65 is: 215,846.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,313.65 : 402,470.48 = 143,897.65 : x
  2. Step 2: Convert to fraction form
    268,313.65/402,470.48 = 143,897.65/x
  3. Step 3: Cross multiply
    268,313.65x = 402,470.48 × 143,897.65
  4. Step 4: Simplify right side
    268,313.65x = 57,914,555,546.88
  5. Step 5: Solve for x
    x = 57,914,555,546.88/268,313.65
  6. Step 6: Final answer
    x = 215,846.48

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1.5x scale

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.