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Finding the Fourth Proportional to 358,906.34, 495,312.81 and 197,761.35

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Solution

The fourth proportional to 358,906.34, 495,312.81 and 197,761.35 is: 272,922.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,906.34 : 495,312.81 = 197,761.35 : x
  2. Step 2: Convert to fraction form
    358,906.34/495,312.81 = 197,761.35/x
  3. Step 3: Cross multiply
    358,906.34x = 495,312.81 × 197,761.35
  4. Step 4: Simplify right side
    358,906.34x = 97,953,727,501.33
  5. Step 5: Solve for x
    x = 97,953,727,501.33/358,906.34
  6. Step 6: Final answer
    x = 272,922.81

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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.