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Finding the Fourth Proportional to 358,960.61, 495,368.91 and 197,821.41

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Solution

The fourth proportional to 358,960.61, 495,368.91 and 197,821.41 is: 272,995.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,960.61 : 495,368.91 = 197,821.41 : x
  2. Step 2: Convert to fraction form
    358,960.61/495,368.91 = 197,821.41/x
  3. Step 3: Cross multiply
    358,960.61x = 495,368.91 × 197,821.41
  4. Step 4: Simplify right side
    358,960.61x = 97,994,576,246.36
  5. Step 5: Solve for x
    x = 97,994,576,246.36/358,960.61
  6. Step 6: Final answer
    x = 272,995.35

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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.