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Finding the Fourth Proportional to 290,624.92, 435,673.32 and 259,132.12

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Solution

The fourth proportional to 290,624.92, 435,673.32 and 259,132.12 is: 388,462.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,624.92 : 435,673.32 = 259,132.12 : x
  2. Step 2: Convert to fraction form
    290,624.92/435,673.32 = 259,132.12/x
  3. Step 3: Cross multiply
    290,624.92x = 435,673.32 × 259,132.12
  4. Step 4: Simplify right side
    290,624.92x = 112,896,951,039.04
  5. Step 5: Solve for x
    x = 112,896,951,039.04/290,624.92
  6. Step 6: Final answer
    x = 388,462.73

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1.5x scale

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.