Home / 442,205.10-663,145.65-142,764.30

Finding the Fourth Proportional to 442,205.10, 663,145.65 and 142,764.30

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Solution

The fourth proportional to 442,205.10, 663,145.65 and 142,764.30 is: 214,094.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,205.10 : 663,145.65 = 142,764.30 : x
  2. Step 2: Convert to fraction form
    442,205.10/663,145.65 = 142,764.30/x
  3. Step 3: Cross multiply
    442,205.10x = 663,145.65 × 142,764.30
  4. Step 4: Simplify right side
    442,205.10x = 94,673,524,520.30
  5. Step 5: Solve for x
    x = 94,673,524,520.30/442,205.10
  6. Step 6: Final answer
    x = 214,094.15

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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.