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Finding the Fourth Proportional to 179,428.36, 247,609.95 and 98,854

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Solution

The fourth proportional to 179,428.36, 247,609.95 and 98,854 is: 136,417.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,428.36 : 247,609.95 = 98,854 : x
  2. Step 2: Convert to fraction form
    179,428.36/247,609.95 = 98,854/x
  3. Step 3: Cross multiply
    179,428.36x = 247,609.95 × 98,854
  4. Step 4: Simplify right side
    179,428.36x = 24,477,233,997.30
  5. Step 5: Solve for x
    x = 24,477,233,997.30/179,428.36
  6. Step 6: Final answer
    x = 136,417.87

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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.