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Finding the Fourth Proportional to 302,568.60, 453,564.90 and 112,978.20

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Solution

The fourth proportional to 302,568.60, 453,564.90 and 112,978.20 is: 169,359.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,568.60 : 453,564.90 = 112,978.20 : x
  2. Step 2: Convert to fraction form
    302,568.60/453,564.90 = 112,978.20/x
  3. Step 3: Cross multiply
    302,568.60x = 453,564.90 × 112,978.20
  4. Step 4: Simplify right side
    302,568.60x = 51,242,945,985.18
  5. Step 5: Solve for x
    x = 51,242,945,985.18/302,568.60
  6. Step 6: Final answer
    x = 169,359.76

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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.