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Finding the Fourth Proportional to 331,812.63, 495,296.55 and 284,730.30

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Solution

The fourth proportional to 331,812.63, 495,296.55 and 284,730.30 is: 425,016.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,812.63 : 495,296.55 = 284,730.30 : x
  2. Step 2: Convert to fraction form
    331,812.63/495,296.55 = 284,730.30/x
  3. Step 3: Cross multiply
    331,812.63x = 495,296.55 × 284,730.30
  4. Step 4: Simplify right side
    331,812.63x = 141,025,935,270.47
  5. Step 5: Solve for x
    x = 141,025,935,270.47/331,812.63
  6. Step 6: Final answer
    x = 425,016.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.