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Finding the Fourth Proportional to 312,171.22, 430,796.27 and 168,931.26

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Solution

The fourth proportional to 312,171.22, 430,796.27 and 168,931.26 is: 233,125.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,171.22 : 430,796.27 = 168,931.26 : x
  2. Step 2: Convert to fraction form
    312,171.22/430,796.27 = 168,931.26/x
  3. Step 3: Cross multiply
    312,171.22x = 430,796.27 × 168,931.26
  4. Step 4: Simplify right side
    312,171.22x = 72,774,957,433.47
  5. Step 5: Solve for x
    x = 72,774,957,433.47/312,171.22
  6. Step 6: Final answer
    x = 233,125.14

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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.