Home / 316,631.52-436,951.72-173,391.60

Finding the Fourth Proportional to 316,631.52, 436,951.72 and 173,391.60

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Solution

The fourth proportional to 316,631.52, 436,951.72 and 173,391.60 is: 239,280.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,631.52 : 436,951.72 = 173,391.60 : x
  2. Step 2: Convert to fraction form
    316,631.52/436,951.72 = 173,391.60/x
  3. Step 3: Cross multiply
    316,631.52x = 436,951.72 × 173,391.60
  4. Step 4: Simplify right side
    316,631.52x = 75,763,757,853.55
  5. Step 5: Solve for x
    x = 75,763,757,853.55/316,631.52
  6. Step 6: Final answer
    x = 239,280.53

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1.5x scale

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.