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Finding the Fourth Proportional to 407,330.60, 611,214.60 and 170,697.20

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Solution

The fourth proportional to 407,330.60, 611,214.60 and 170,697.20 is: 256,137.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,330.60 : 611,214.60 = 170,697.20 : x
  2. Step 2: Convert to fraction form
    407,330.60/611,214.60 = 170,697.20/x
  3. Step 3: Cross multiply
    407,330.60x = 611,214.60 × 170,697.20
  4. Step 4: Simplify right side
    407,330.60x = 104,332,620,819.12
  5. Step 5: Solve for x
    x = 104,332,620,819.12/407,330.60
  6. Step 6: Final answer
    x = 256,137.45

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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.