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Finding the Fourth Proportional to 229,901, 317,263.38 and 129,301.16

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Solution

The fourth proportional to 229,901, 317,263.38 and 129,301.16 is: 178,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,901 : 317,263.38 = 129,301.16 : x
  2. Step 2: Convert to fraction form
    229,901/317,263.38 = 129,301.16/x
  3. Step 3: Cross multiply
    229,901x = 317,263.38 × 129,301.16
  4. Step 4: Simplify right side
    229,901x = 41,022,523,059.52
  5. Step 5: Solve for x
    x = 41,022,523,059.52/229,901
  6. Step 6: Final answer
    x = 178,435.60

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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.