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Finding the Fourth Proportional to 315,084.44, 434,853.90 and 179,138.90

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Solution

The fourth proportional to 315,084.44, 434,853.90 and 179,138.90 is: 247,232.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,084.44 : 434,853.90 = 179,138.90 : x
  2. Step 2: Convert to fraction form
    315,084.44/434,853.90 = 179,138.90/x
  3. Step 3: Cross multiply
    315,084.44x = 434,853.90 × 179,138.90
  4. Step 4: Simplify right side
    315,084.44x = 77,899,249,306.71
  5. Step 5: Solve for x
    x = 77,899,249,306.71/315,084.44
  6. Step 6: Final answer
    x = 247,232.93

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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.