Home / 305,122.24-457,714.08-80,498.20

Finding the Fourth Proportional to 305,122.24, 457,714.08 and 80,498.20

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Solution

The fourth proportional to 305,122.24, 457,714.08 and 80,498.20 is: 120,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,122.24 : 457,714.08 = 80,498.20 : x
  2. Step 2: Convert to fraction form
    305,122.24/457,714.08 = 80,498.20/x
  3. Step 3: Cross multiply
    305,122.24x = 457,714.08 × 80,498.20
  4. Step 4: Simplify right side
    305,122.24x = 36,845,159,554.66
  5. Step 5: Solve for x
    x = 36,845,159,554.66/305,122.24
  6. Step 6: Final answer
    x = 120,755.40

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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.