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Finding the Fourth Proportional to 302,736, 417,080.16 and 239,050.56

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Solution

The fourth proportional to 302,736, 417,080.16 and 239,050.56 is: 329,340.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,736 : 417,080.16 = 239,050.56 : x
  2. Step 2: Convert to fraction form
    302,736/417,080.16 = 239,050.56/x
  3. Step 3: Cross multiply
    302,736x = 417,080.16 × 239,050.56
  4. Step 4: Simplify right side
    302,736x = 99,703,245,812.89
  5. Step 5: Solve for x
    x = 99,703,245,812.89/302,736
  6. Step 6: Final answer
    x = 329,340.57

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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.