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Finding the Fourth Proportional to 285,251.36, 393,657.48 and 162,763.68

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Solution

The fourth proportional to 285,251.36, 393,657.48 and 162,763.68 is: 224,619.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,251.36 : 393,657.48 = 162,763.68 : x
  2. Step 2: Convert to fraction form
    285,251.36/393,657.48 = 162,763.68/x
  3. Step 3: Cross multiply
    285,251.36x = 393,657.48 × 162,763.68
  4. Step 4: Simplify right side
    285,251.36x = 64,073,139,290.51
  5. Step 5: Solve for x
    x = 64,073,139,290.51/285,251.36
  6. Step 6: Final answer
    x = 224,619.93

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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.