Home / 219,275.52-328,934.81-91,165.35

Finding the Fourth Proportional to 219,275.52, 328,934.81 and 91,165.35

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Solution

The fourth proportional to 219,275.52, 328,934.81 and 91,165.35 is: 136,756.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,275.52 : 328,934.81 = 91,165.35 : x
  2. Step 2: Convert to fraction form
    219,275.52/328,934.81 = 91,165.35/x
  3. Step 3: Cross multiply
    219,275.52x = 328,934.81 × 91,165.35
  4. Step 4: Simplify right side
    219,275.52x = 29,987,456,179.19
  5. Step 5: Solve for x
    x = 29,987,456,179.19/219,275.52
  6. Step 6: Final answer
    x = 136,756.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.