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Finding the Fourth Proportional to 309,038.98, 463,753.48 and 131,545.71

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Solution

The fourth proportional to 309,038.98, 463,753.48 and 131,545.71 is: 197,401.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,038.98 : 463,753.48 = 131,545.71 : x
  2. Step 2: Convert to fraction form
    309,038.98/463,753.48 = 131,545.71/x
  3. Step 3: Cross multiply
    309,038.98x = 463,753.48 × 131,545.71
  4. Step 4: Simplify right side
    309,038.98x = 61,004,780,791.57
  5. Step 5: Solve for x
    x = 61,004,780,791.57/309,038.98
  6. Step 6: Final answer
    x = 197,401.57

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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.