Home / 385,219.40-577,907.90-132,467.06

Finding the Fourth Proportional to 385,219.40, 577,907.90 and 132,467.06

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Solution

The fourth proportional to 385,219.40, 577,907.90 and 132,467.06 is: 198,727.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,219.40 : 577,907.90 = 132,467.06 : x
  2. Step 2: Convert to fraction form
    385,219.40/577,907.90 = 132,467.06/x
  3. Step 3: Cross multiply
    385,219.40x = 577,907.90 × 132,467.06
  4. Step 4: Simplify right side
    385,219.40x = 76,553,760,463.77
  5. Step 5: Solve for x
    x = 76,553,760,463.77/385,219.40
  6. Step 6: Final answer
    x = 198,727.69

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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.