Home / 229,942.02-317,319.72-129,340.02

Finding the Fourth Proportional to 229,942.02, 317,319.72 and 129,340.02

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Solution

The fourth proportional to 229,942.02, 317,319.72 and 129,340.02 is: 178,489.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,942.02 : 317,319.72 = 129,340.02 : x
  2. Step 2: Convert to fraction form
    229,942.02/317,319.72 = 129,340.02/x
  3. Step 3: Cross multiply
    229,942.02x = 317,319.72 × 129,340.02
  4. Step 4: Simplify right side
    229,942.02x = 41,042,138,931.19
  5. Step 5: Solve for x
    x = 41,042,138,931.19/229,942.02
  6. Step 6: Final answer
    x = 178,489.08

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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.