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Finding the Fourth Proportional to 358,996.43, 495,499.49 and 223,132.98

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Solution

The fourth proportional to 358,996.43, 495,499.49 and 223,132.98 is: 307,975.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,996.43 : 495,499.49 = 223,132.98 : x
  2. Step 2: Convert to fraction form
    358,996.43/495,499.49 = 223,132.98/x
  3. Step 3: Cross multiply
    358,996.43x = 495,499.49 × 223,132.98
  4. Step 4: Simplify right side
    358,996.43x = 110,562,276,676.52
  5. Step 5: Solve for x
    x = 110,562,276,676.52/358,996.43
  6. Step 6: Final answer
    x = 307,975.98

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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.