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Finding the Fourth Proportional to 445,082, 614,213.16 and 243,873.68

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Solution

The fourth proportional to 445,082, 614,213.16 and 243,873.68 is: 336,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,082 : 614,213.16 = 243,873.68 : x
  2. Step 2: Convert to fraction form
    445,082/614,213.16 = 243,873.68/x
  3. Step 3: Cross multiply
    445,082x = 614,213.16 × 243,873.68
  4. Step 4: Simplify right side
    445,082x = 149,790,423,633.63
  5. Step 5: Solve for x
    x = 149,790,423,633.63/445,082
  6. Step 6: Final answer
    x = 336,545.68

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1.5x scale

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.