Home / 423,276.68-634,876.14-142,796.36

Finding the Fourth Proportional to 423,276.68, 634,876.14 and 142,796.36

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Solution

The fourth proportional to 423,276.68, 634,876.14 and 142,796.36 is: 214,181.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,276.68 : 634,876.14 = 142,796.36 : x
  2. Step 2: Convert to fraction form
    423,276.68/634,876.14 = 142,796.36/x
  3. Step 3: Cross multiply
    423,276.68x = 634,876.14 × 142,796.36
  4. Step 4: Simplify right side
    423,276.68x = 90,658,001,842.85
  5. Step 5: Solve for x
    x = 90,658,001,842.85/423,276.68
  6. Step 6: Final answer
    x = 214,181.42

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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.