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Finding the Fourth Proportional to 307,595.72, 424,511.40 and 186,709.29

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Solution

The fourth proportional to 307,595.72, 424,511.40 and 186,709.29 is: 257,676.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,595.72 : 424,511.40 = 186,709.29 : x
  2. Step 2: Convert to fraction form
    307,595.72/424,511.40 = 186,709.29/x
  3. Step 3: Cross multiply
    307,595.72x = 424,511.40 × 186,709.29
  4. Step 4: Simplify right side
    307,595.72x = 79,260,222,090.91
  5. Step 5: Solve for x
    x = 79,260,222,090.91/307,595.72
  6. Step 6: Final answer
    x = 257,676.61

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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.