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Finding the Fourth Proportional to 331,813.63, 495,298.04 and 284,731.30

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Solution

The fourth proportional to 331,813.63, 495,298.04 and 284,731.30 is: 425,018.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,813.63 : 495,298.04 = 284,731.30 : x
  2. Step 2: Convert to fraction form
    331,813.63/495,298.04 = 284,731.30/x
  3. Step 3: Cross multiply
    331,813.63x = 495,298.04 × 284,731.30
  4. Step 4: Simplify right side
    331,813.63x = 141,026,854,816.65
  5. Step 5: Solve for x
    x = 141,026,854,816.65/331,813.63
  6. Step 6: Final answer
    x = 425,018.27

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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.