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Finding the Fourth Proportional to 307,304.51, 424,049.31 and 171,325.76

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Solution

The fourth proportional to 307,304.51, 424,049.31 and 171,325.76 is: 236,412.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,304.51 : 424,049.31 = 171,325.76 : x
  2. Step 2: Convert to fraction form
    307,304.51/424,049.31 = 171,325.76/x
  3. Step 3: Cross multiply
    307,304.51x = 424,049.31 × 171,325.76
  4. Step 4: Simplify right side
    307,304.51x = 72,650,568,192.98
  5. Step 5: Solve for x
    x = 72,650,568,192.98/307,304.51
  6. Step 6: Final answer
    x = 236,412.31

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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.