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Finding the Fourth Proportional to 302,037.40, 453,201.90 and 213,099.40

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Solution

The fourth proportional to 302,037.40, 453,201.90 and 213,099.40 is: 319,751.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,037.40 : 453,201.90 = 213,099.40 : x
  2. Step 2: Convert to fraction form
    302,037.40/453,201.90 = 213,099.40/x
  3. Step 3: Cross multiply
    302,037.40x = 453,201.90 × 213,099.40
  4. Step 4: Simplify right side
    302,037.40x = 96,577,052,968.86
  5. Step 5: Solve for x
    x = 96,577,052,968.86/302,037.40
  6. Step 6: Final answer
    x = 319,751.97

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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.