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Finding the Fourth Proportional to 308,676.80, 463,248.47 and 131,308.67

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Solution

The fourth proportional to 308,676.80, 463,248.47 and 131,308.67 is: 197,062.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,676.80 : 463,248.47 = 131,308.67 : x
  2. Step 2: Convert to fraction form
    308,676.80/463,248.47 = 131,308.67/x
  3. Step 3: Cross multiply
    308,676.80x = 463,248.47 × 131,308.67
  4. Step 4: Simplify right side
    308,676.80x = 60,828,537,502.45
  5. Step 5: Solve for x
    x = 60,828,537,502.45/308,676.80
  6. Step 6: Final answer
    x = 197,062.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.