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Finding the Fourth Proportional to 308,403.63, 425,466.68 and 206,461.93

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Solution

The fourth proportional to 308,403.63, 425,466.68 and 206,461.93 is: 284,830.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,403.63 : 425,466.68 = 206,461.93 : x
  2. Step 2: Convert to fraction form
    308,403.63/425,466.68 = 206,461.93/x
  3. Step 3: Cross multiply
    308,403.63x = 425,466.68 × 206,461.93
  4. Step 4: Simplify right side
    308,403.63x = 87,842,669,776.16
  5. Step 5: Solve for x
    x = 87,842,669,776.16/308,403.63
  6. Step 6: Final answer
    x = 284,830.21

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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.