Home / 326,056.20-489,108.60-115,666.80

Finding the Fourth Proportional to 326,056.20, 489,108.60 and 115,666.80

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Solution

The fourth proportional to 326,056.20, 489,108.60 and 115,666.80 is: 173,508.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,056.20 : 489,108.60 = 115,666.80 : x
  2. Step 2: Convert to fraction form
    326,056.20/489,108.60 = 115,666.80/x
  3. Step 3: Cross multiply
    326,056.20x = 489,108.60 × 115,666.80
  4. Step 4: Simplify right side
    326,056.20x = 56,573,626,614.48
  5. Step 5: Solve for x
    x = 56,573,626,614.48/326,056.20
  6. Step 6: Final answer
    x = 173,508.82

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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.