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Finding the Fourth Proportional to 290,246.63, 435,258.14 and 112,730.27

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Solution

The fourth proportional to 290,246.63, 435,258.14 and 112,730.27 is: 169,051.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,246.63 : 435,258.14 = 112,730.27 : x
  2. Step 2: Convert to fraction form
    290,246.63/435,258.14 = 112,730.27/x
  3. Step 3: Cross multiply
    290,246.63x = 435,258.14 × 112,730.27
  4. Step 4: Simplify right side
    290,246.63x = 49,066,764,901.96
  5. Step 5: Solve for x
    x = 49,066,764,901.96/290,246.63
  6. Step 6: Final answer
    x = 169,051.97

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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.