Home / 303,749.10-455,514.30-153,939.60

Finding the Fourth Proportional to 303,749.10, 455,514.30 and 153,939.60

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Solution

The fourth proportional to 303,749.10, 455,514.30 and 153,939.60 is: 230,853.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,749.10 : 455,514.30 = 153,939.60 : x
  2. Step 2: Convert to fraction form
    303,749.10/455,514.30 = 153,939.60/x
  3. Step 3: Cross multiply
    303,749.10x = 455,514.30 × 153,939.60
  4. Step 4: Simplify right side
    303,749.10x = 70,121,689,136.28
  5. Step 5: Solve for x
    x = 70,121,689,136.28/303,749.10
  6. Step 6: Final answer
    x = 230,853.98

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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.