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Finding the Fourth Proportional to 317,777.69, 438,426.48 and 179,937.85

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Solution

The fourth proportional to 317,777.69, 438,426.48 and 179,937.85 is: 248,253.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,777.69 : 438,426.48 = 179,937.85 : x
  2. Step 2: Convert to fraction form
    317,777.69/438,426.48 = 179,937.85/x
  3. Step 3: Cross multiply
    317,777.69x = 438,426.48 × 179,937.85
  4. Step 4: Simplify right side
    317,777.69x = 78,889,516,002.14
  5. Step 5: Solve for x
    x = 78,889,516,002.14/317,777.69
  6. Step 6: Final answer
    x = 248,253.79

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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.