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Finding the Fourth Proportional to 307,451.34, 424,283.44 and 171,494.10

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Solution

The fourth proportional to 307,451.34, 424,283.44 and 171,494.10 is: 236,662.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,451.34 : 424,283.44 = 171,494.10 : x
  2. Step 2: Convert to fraction form
    307,451.34/424,283.44 = 171,494.10/x
  3. Step 3: Cross multiply
    307,451.34x = 424,283.44 × 171,494.10
  4. Step 4: Simplify right side
    307,451.34x = 72,762,106,687.70
  5. Step 5: Solve for x
    x = 72,762,106,687.70/307,451.34
  6. Step 6: Final answer
    x = 236,662.19

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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.