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Finding the Fourth Proportional to 349,871.20, 524,029.20 and 303,215.20

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Solution

The fourth proportional to 349,871.20, 524,029.20 and 303,215.20 is: 454,148.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,871.20 : 524,029.20 = 303,215.20 : x
  2. Step 2: Convert to fraction form
    349,871.20/524,029.20 = 303,215.20/x
  3. Step 3: Cross multiply
    349,871.20x = 524,029.20 × 303,215.20
  4. Step 4: Simplify right side
    349,871.20x = 158,893,618,683.84
  5. Step 5: Solve for x
    x = 158,893,618,683.84/349,871.20
  6. Step 6: Final answer
    x = 454,148.89

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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.