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Finding the Fourth Proportional to 352,459.60, 527,998.20 and 211,800.40

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Solution

The fourth proportional to 352,459.60, 527,998.20 and 211,800.40 is: 317,285.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,459.60 : 527,998.20 = 211,800.40 : x
  2. Step 2: Convert to fraction form
    352,459.60/527,998.20 = 211,800.40/x
  3. Step 3: Cross multiply
    352,459.60x = 527,998.20 × 211,800.40
  4. Step 4: Simplify right side
    352,459.60x = 111,830,229,959.28
  5. Step 5: Solve for x
    x = 111,830,229,959.28/352,459.60
  6. Step 6: Final answer
    x = 317,285.24

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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.