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Finding the Fourth Proportional to 315,063.52, 434,813.52 and 179,140.12

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Solution

The fourth proportional to 315,063.52, 434,813.52 and 179,140.12 is: 247,228.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,063.52 : 434,813.52 = 179,140.12 : x
  2. Step 2: Convert to fraction form
    315,063.52/434,813.52 = 179,140.12/x
  3. Step 3: Cross multiply
    315,063.52x = 434,813.52 × 179,140.12
  4. Step 4: Simplify right side
    315,063.52x = 77,892,546,150.42
  5. Step 5: Solve for x
    x = 77,892,546,150.42/315,063.52
  6. Step 6: Final answer
    x = 247,228.07

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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.