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Finding the Fourth Proportional to 398,015.60, 596,148.60 and 161,236.40

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Solution

The fourth proportional to 398,015.60, 596,148.60 and 161,236.40 is: 241,500.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,015.60 : 596,148.60 = 161,236.40 : x
  2. Step 2: Convert to fraction form
    398,015.60/596,148.60 = 161,236.40/x
  3. Step 3: Cross multiply
    398,015.60x = 596,148.60 × 161,236.40
  4. Step 4: Simplify right side
    398,015.60x = 96,120,854,129.04
  5. Step 5: Solve for x
    x = 96,120,854,129.04/398,015.60
  6. Step 6: Final answer
    x = 241,500.22

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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.