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Finding the Fourth Proportional to 245,507.76, 338,814.60 and 163,694.82

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Solution

The fourth proportional to 245,507.76, 338,814.60 and 163,694.82 is: 225,908.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,507.76 : 338,814.60 = 163,694.82 : x
  2. Step 2: Convert to fraction form
    245,507.76/338,814.60 = 163,694.82/x
  3. Step 3: Cross multiply
    245,507.76x = 338,814.60 × 163,694.82
  4. Step 4: Simplify right side
    245,507.76x = 55,462,195,617.07
  5. Step 5: Solve for x
    x = 55,462,195,617.07/245,507.76
  6. Step 6: Final answer
    x = 225,908.12

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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.