Home / 229,933.40-317,318.46-129,331.40

Finding the Fourth Proportional to 229,933.40, 317,318.46 and 129,331.40

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Solution

The fourth proportional to 229,933.40, 317,318.46 and 129,331.40 is: 178,483.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,933.40 : 317,318.46 = 129,331.40 : x
  2. Step 2: Convert to fraction form
    229,933.40/317,318.46 = 129,331.40/x
  3. Step 3: Cross multiply
    229,933.40x = 317,318.46 × 129,331.40
  4. Step 4: Simplify right side
    229,933.40x = 41,039,240,677.64
  5. Step 5: Solve for x
    x = 41,039,240,677.64/229,933.40
  6. Step 6: Final answer
    x = 178,483.16

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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.