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Finding the Fourth Proportional to 375,157.96, 561,406.86 and 330,871

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Solution

The fourth proportional to 375,157.96, 561,406.86 and 330,871 is: 495,133.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,157.96 : 561,406.86 = 330,871 : x
  2. Step 2: Convert to fraction form
    375,157.96/561,406.86 = 330,871/x
  3. Step 3: Cross multiply
    375,157.96x = 561,406.86 × 330,871
  4. Step 4: Simplify right side
    375,157.96x = 185,753,249,175.06
  5. Step 5: Solve for x
    x = 185,753,249,175.06/375,157.96
  6. Step 6: Final answer
    x = 495,133.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.