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Finding the Fourth Proportional to 358,860.50, 495,227.21 and 197,715.54

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Solution

The fourth proportional to 358,860.50, 495,227.21 and 197,715.54 is: 272,847.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,860.50 : 495,227.21 = 197,715.54 : x
  2. Step 2: Convert to fraction form
    358,860.50/495,227.21 = 197,715.54/x
  3. Step 3: Cross multiply
    358,860.50x = 495,227.21 × 197,715.54
  4. Step 4: Simplify right side
    358,860.50x = 97,914,117,599.23
  5. Step 5: Solve for x
    x = 97,914,117,599.23/358,860.50
  6. Step 6: Final answer
    x = 272,847.30

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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.