Home / 326,677.28-489,784.25-126,829.22

Finding the Fourth Proportional to 326,677.28, 489,784.25 and 126,829.22

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Solution

The fourth proportional to 326,677.28, 489,784.25 and 126,829.22 is: 190,153.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,677.28 : 489,784.25 = 126,829.22 : x
  2. Step 2: Convert to fraction form
    326,677.28/489,784.25 = 126,829.22/x
  3. Step 3: Cross multiply
    326,677.28x = 489,784.25 × 126,829.22
  4. Step 4: Simplify right side
    326,677.28x = 62,118,952,263.94
  5. Step 5: Solve for x
    x = 62,118,952,263.94/326,677.28
  6. Step 6: Final answer
    x = 190,153.88

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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.