Home / 303,748.10-455,512.80-153,938.60

Finding the Fourth Proportional to 303,748.10, 455,512.80 and 153,938.60

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Solution

The fourth proportional to 303,748.10, 455,512.80 and 153,938.60 is: 230,852.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,748.10 : 455,512.80 = 153,938.60 : x
  2. Step 2: Convert to fraction form
    303,748.10/455,512.80 = 153,938.60/x
  3. Step 3: Cross multiply
    303,748.10x = 455,512.80 × 153,938.60
  4. Step 4: Simplify right side
    303,748.10x = 70,121,002,714.08
  5. Step 5: Solve for x
    x = 70,121,002,714.08/303,748.10
  6. Step 6: Final answer
    x = 230,852.48

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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.