Home / 323,816.90-485,761.80-99,175.55

Finding the Fourth Proportional to 323,816.90, 485,761.80 and 99,175.55

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Solution

The fourth proportional to 323,816.90, 485,761.80 and 99,175.55 is: 148,774.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,816.90 : 485,761.80 = 99,175.55 : x
  2. Step 2: Convert to fraction form
    323,816.90/485,761.80 = 99,175.55/x
  3. Step 3: Cross multiply
    323,816.90x = 485,761.80 × 99,175.55
  4. Step 4: Simplify right side
    323,816.90x = 48,175,693,683.99
  5. Step 5: Solve for x
    x = 48,175,693,683.99/323,816.90
  6. Step 6: Final answer
    x = 148,774.49

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1.5x scale

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.