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Finding the Fourth Proportional to 358,717.48, 495,033.30 and 197,578.12

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Solution

The fourth proportional to 358,717.48, 495,033.30 and 197,578.12 is: 272,659.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,717.48 : 495,033.30 = 197,578.12 : x
  2. Step 2: Convert to fraction form
    358,717.48/495,033.30 = 197,578.12/x
  3. Step 3: Cross multiply
    358,717.48x = 495,033.30 × 197,578.12
  4. Step 4: Simplify right side
    358,717.48x = 97,807,748,751.40
  5. Step 5: Solve for x
    x = 97,807,748,751.40/358,717.48
  6. Step 6: Final answer
    x = 272,659.56

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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.