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Finding the Fourth Proportional to 314,855.37, 434,504.79 and 171,615.15

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Solution

The fourth proportional to 314,855.37, 434,504.79 and 171,615.15 is: 236,831.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,855.37 : 434,504.79 = 171,615.15 : x
  2. Step 2: Convert to fraction form
    314,855.37/434,504.79 = 171,615.15/x
  3. Step 3: Cross multiply
    314,855.37x = 434,504.79 × 171,615.15
  4. Step 4: Simplify right side
    314,855.37x = 74,567,604,711.57
  5. Step 5: Solve for x
    x = 74,567,604,711.57/314,855.37
  6. Step 6: Final answer
    x = 236,831.29

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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.