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Finding the Fourth Proportional to 316,769.82, 437,142.87 and 173,526.72

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Solution

The fourth proportional to 316,769.82, 437,142.87 and 173,526.72 is: 239,467.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,769.82 : 437,142.87 = 173,526.72 : x
  2. Step 2: Convert to fraction form
    316,769.82/437,142.87 = 173,526.72/x
  3. Step 3: Cross multiply
    316,769.82x = 437,142.87 × 173,526.72
  4. Step 4: Simplify right side
    316,769.82x = 75,855,968,402.49
  5. Step 5: Solve for x
    x = 75,855,968,402.49/316,769.82
  6. Step 6: Final answer
    x = 239,467.16

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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.