Home / 426,330.72-639,345.96-141,944.04

Finding the Fourth Proportional to 426,330.72, 639,345.96 and 141,944.04

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Solution

The fourth proportional to 426,330.72, 639,345.96 and 141,944.04 is: 212,866.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,330.72 : 639,345.96 = 141,944.04 : x
  2. Step 2: Convert to fraction form
    426,330.72/639,345.96 = 141,944.04/x
  3. Step 3: Cross multiply
    426,330.72x = 639,345.96 × 141,944.04
  4. Step 4: Simplify right side
    426,330.72x = 90,751,348,520.08
  5. Step 5: Solve for x
    x = 90,751,348,520.08/426,330.72
  6. Step 6: Final answer
    x = 212,866.08

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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.