Home / 331,012.90-496,130.52-153,144.22

Finding the Fourth Proportional to 331,012.90, 496,130.52 and 153,144.22

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Solution

The fourth proportional to 331,012.90, 496,130.52 and 153,144.22 is: 229,536.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,012.90 : 496,130.52 = 153,144.22 : x
  2. Step 2: Convert to fraction form
    331,012.90/496,130.52 = 153,144.22/x
  3. Step 3: Cross multiply
    331,012.90x = 496,130.52 × 153,144.22
  4. Step 4: Simplify right side
    331,012.90x = 75,979,521,503.59
  5. Step 5: Solve for x
    x = 75,979,521,503.59/331,012.90
  6. Step 6: Final answer
    x = 229,536.44

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Double scale
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Similar ratio
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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.