Home / 315,169.40-434,933.78-171,930.02

Finding the Fourth Proportional to 315,169.40, 434,933.78 and 171,930.02

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Solution

The fourth proportional to 315,169.40, 434,933.78 and 171,930.02 is: 237,263.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,169.40 : 434,933.78 = 171,930.02 : x
  2. Step 2: Convert to fraction form
    315,169.40/434,933.78 = 171,930.02/x
  3. Step 3: Cross multiply
    315,169.40x = 434,933.78 × 171,930.02
  4. Step 4: Simplify right side
    315,169.40x = 74,778,173,494.08
  5. Step 5: Solve for x
    x = 74,778,173,494.08/315,169.40
  6. Step 6: Final answer
    x = 237,263.43

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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.