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Finding the Fourth Proportional to 307,003.48, 459,654.90 and 156,920.60

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Solution

The fourth proportional to 307,003.48, 459,654.90 and 156,920.60 is: 234,946.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,003.48 : 459,654.90 = 156,920.60 : x
  2. Step 2: Convert to fraction form
    307,003.48/459,654.90 = 156,920.60/x
  3. Step 3: Cross multiply
    307,003.48x = 459,654.90 × 156,920.60
  4. Step 4: Simplify right side
    307,003.48x = 72,129,322,700.94
  5. Step 5: Solve for x
    x = 72,129,322,700.94/307,003.48
  6. Step 6: Final answer
    x = 234,946.27

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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.