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Finding the Fourth Proportional to 358,726, 495,041.88 and 207,910.48

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Solution

The fourth proportional to 358,726, 495,041.88 and 207,910.48 is: 286,916.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,726 : 495,041.88 = 207,910.48 : x
  2. Step 2: Convert to fraction form
    358,726/495,041.88 = 207,910.48/x
  3. Step 3: Cross multiply
    358,726x = 495,041.88 × 207,910.48
  4. Step 4: Simplify right side
    358,726x = 102,924,394,890.90
  5. Step 5: Solve for x
    x = 102,924,394,890.90/358,726
  6. Step 6: Final answer
    x = 286,916.46

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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.