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Finding the Fourth Proportional to 317,008.80, 437,469.36 and 173,768.40

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Solution

The fourth proportional to 317,008.80, 437,469.36 and 173,768.40 is: 239,798.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,008.80 : 437,469.36 = 173,768.40 : x
  2. Step 2: Convert to fraction form
    317,008.80/437,469.36 = 173,768.40/x
  3. Step 3: Cross multiply
    317,008.80x = 437,469.36 × 173,768.40
  4. Step 4: Simplify right side
    317,008.80x = 76,018,350,736.22
  5. Step 5: Solve for x
    x = 76,018,350,736.22/317,008.80
  6. Step 6: Final answer
    x = 239,798.87

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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.