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Finding the Fourth Proportional to 317,016.80, 437,480.40 and 173,776.40

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Solution

The fourth proportional to 317,016.80, 437,480.40 and 173,776.40 is: 239,809.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,016.80 : 437,480.40 = 173,776.40 : x
  2. Step 2: Convert to fraction form
    317,016.80/437,480.40 = 173,776.40/x
  3. Step 3: Cross multiply
    317,016.80x = 437,480.40 × 173,776.40
  4. Step 4: Simplify right side
    317,016.80x = 76,023,768,982.56
  5. Step 5: Solve for x
    x = 76,023,768,982.56/317,016.80
  6. Step 6: Final answer
    x = 239,809.91

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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.