Home / 312,171.25-430,796.33-168,931.30

Finding the Fourth Proportional to 312,171.25, 430,796.33 and 168,931.30

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Solution

The fourth proportional to 312,171.25, 430,796.33 and 168,931.30 is: 233,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,171.25 : 430,796.33 = 168,931.30 : x
  2. Step 2: Convert to fraction form
    312,171.25/430,796.33 = 168,931.30/x
  3. Step 3: Cross multiply
    312,171.25x = 430,796.33 × 168,931.30
  4. Step 4: Simplify right side
    312,171.25x = 72,774,984,062.13
  5. Step 5: Solve for x
    x = 72,774,984,062.13/312,171.25
  6. Step 6: Final answer
    x = 233,125.20

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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.