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Finding the Fourth Proportional to 302,719.20, 417,688.80 and 175,387.20

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Solution

The fourth proportional to 302,719.20, 417,688.80 and 175,387.20 is: 241,997.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,719.20 : 417,688.80 = 175,387.20 : x
  2. Step 2: Convert to fraction form
    302,719.20/417,688.80 = 175,387.20/x
  3. Step 3: Cross multiply
    302,719.20x = 417,688.80 × 175,387.20
  4. Step 4: Simplify right side
    302,719.20x = 73,257,269,103.36
  5. Step 5: Solve for x
    x = 73,257,269,103.36/302,719.20
  6. Step 6: Final answer
    x = 241,997.43

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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.