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Finding the Fourth Proportional to 295,804.70, 443,707.05 and 138,049.10

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Solution

The fourth proportional to 295,804.70, 443,707.05 and 138,049.10 is: 207,073.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,804.70 : 443,707.05 = 138,049.10 : x
  2. Step 2: Convert to fraction form
    295,804.70/443,707.05 = 138,049.10/x
  3. Step 3: Cross multiply
    295,804.70x = 443,707.05 × 138,049.10
  4. Step 4: Simplify right side
    295,804.70x = 61,253,358,916.16
  5. Step 5: Solve for x
    x = 61,253,358,916.16/295,804.70
  6. Step 6: Final answer
    x = 207,073.65

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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.