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Finding the Fourth Proportional to 358,694, 495,032.28 and 199,718

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Solution

The fourth proportional to 358,694, 495,032.28 and 199,718 is: 275,630.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,694 : 495,032.28 = 199,718 : x
  2. Step 2: Convert to fraction form
    358,694/495,032.28 = 199,718/x
  3. Step 3: Cross multiply
    358,694x = 495,032.28 × 199,718
  4. Step 4: Simplify right side
    358,694x = 98,866,856,897.04
  5. Step 5: Solve for x
    x = 98,866,856,897.04/358,694
  6. Step 6: Final answer
    x = 275,630.08

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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.