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Finding the Fourth Proportional to 358,948.97, 495,352.91 and 197,809.80

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Solution

The fourth proportional to 358,948.97, 495,352.91 and 197,809.80 is: 272,979.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,948.97 : 495,352.91 = 197,809.80 : x
  2. Step 2: Convert to fraction form
    358,948.97/495,352.91 = 197,809.80/x
  3. Step 3: Cross multiply
    358,948.97x = 495,352.91 × 197,809.80
  4. Step 4: Simplify right side
    358,948.97x = 97,985,659,067.47
  5. Step 5: Solve for x
    x = 97,985,659,067.47/358,948.97
  6. Step 6: Final answer
    x = 272,979.36

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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.