Home / 358,936.11-495,511.17-278,182.35

Finding the Fourth Proportional to 358,936.11, 495,511.17 and 278,182.35

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Solution

The fourth proportional to 358,936.11, 495,511.17 and 278,182.35 is: 384,030.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,936.11 : 495,511.17 = 278,182.35 : x
  2. Step 2: Convert to fraction form
    358,936.11/495,511.17 = 278,182.35/x
  3. Step 3: Cross multiply
    358,936.11x = 495,511.17 × 278,182.35
  4. Step 4: Simplify right side
    358,936.11x = 137,842,461,721.85
  5. Step 5: Solve for x
    x = 137,842,461,721.85/358,936.11
  6. Step 6: Final answer
    x = 384,030.63

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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.