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Finding the Fourth Proportional to 329,995.45, 495,001.71 and 105,355.69

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Solution

The fourth proportional to 329,995.45, 495,001.71 and 105,355.69 is: 158,036.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,995.45 : 495,001.71 = 105,355.69 : x
  2. Step 2: Convert to fraction form
    329,995.45/495,001.71 = 105,355.69/x
  3. Step 3: Cross multiply
    329,995.45x = 495,001.71 × 105,355.69
  4. Step 4: Simplify right side
    329,995.45x = 52,151,246,708.23
  5. Step 5: Solve for x
    x = 52,151,246,708.23/329,995.45
  6. Step 6: Final answer
    x = 158,036.26

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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.