Home / 229,941.01-317,318.34-129,339.01

Finding the Fourth Proportional to 229,941.01, 317,318.34 and 129,339.01

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Solution

The fourth proportional to 229,941.01, 317,318.34 and 129,339.01 is: 178,487.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,941.01 : 317,318.34 = 129,339.01 : x
  2. Step 2: Convert to fraction form
    229,941.01/317,318.34 = 129,339.01/x
  3. Step 3: Cross multiply
    229,941.01x = 317,318.34 × 129,339.01
  4. Step 4: Simplify right side
    229,941.01x = 41,041,639,950.44
  5. Step 5: Solve for x
    x = 41,041,639,950.44/229,941.01
  6. Step 6: Final answer
    x = 178,487.69

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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.