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Finding the Fourth Proportional to 309,006.96, 426,483 and 174,870.96

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Solution

The fourth proportional to 309,006.96, 426,483 and 174,870.96 is: 241,352.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,006.96 : 426,483 = 174,870.96 : x
  2. Step 2: Convert to fraction form
    309,006.96/426,483 = 174,870.96/x
  3. Step 3: Cross multiply
    309,006.96x = 426,483 × 174,870.96
  4. Step 4: Simplify right side
    309,006.96x = 74,579,491,633.68
  5. Step 5: Solve for x
    x = 74,579,491,633.68/309,006.96
  6. Step 6: Final answer
    x = 241,352.14

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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.