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Finding the Fourth Proportional to 348,348.83, 480,765.85 and 205,122.20

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Solution

The fourth proportional to 348,348.83, 480,765.85 and 205,122.20 is: 283,094.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,348.83 : 480,765.85 = 205,122.20 : x
  2. Step 2: Convert to fraction form
    348,348.83/480,765.85 = 205,122.20/x
  3. Step 3: Cross multiply
    348,348.83x = 480,765.85 × 205,122.20
  4. Step 4: Simplify right side
    348,348.83x = 98,615,745,920.24
  5. Step 5: Solve for x
    x = 98,615,745,920.24/348,348.83
  6. Step 6: Final answer
    x = 283,094.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.