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Finding the Fourth Proportional to 320,060.44, 480,258.30 and 207,714.20

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Solution

The fourth proportional to 320,060.44, 480,258.30 and 207,714.20 is: 311,680.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,060.44 : 480,258.30 = 207,714.20 : x
  2. Step 2: Convert to fraction form
    320,060.44/480,258.30 = 207,714.20/x
  3. Step 3: Cross multiply
    320,060.44x = 480,258.30 × 207,714.20
  4. Step 4: Simplify right side
    320,060.44x = 99,756,468,577.86
  5. Step 5: Solve for x
    x = 99,756,468,577.86/320,060.44
  6. Step 6: Final answer
    x = 311,680.10

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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.