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Finding the Fourth Proportional to 268,563.58, 402,901.94 and 79,008.10

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Solution

The fourth proportional to 268,563.58, 402,901.94 and 79,008.10 is: 118,528.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,563.58 : 402,901.94 = 79,008.10 : x
  2. Step 2: Convert to fraction form
    268,563.58/402,901.94 = 79,008.10/x
  3. Step 3: Cross multiply
    268,563.58x = 402,901.94 × 79,008.10
  4. Step 4: Simplify right side
    268,563.58x = 31,832,516,765.71
  5. Step 5: Solve for x
    x = 31,832,516,765.71/268,563.58
  6. Step 6: Final answer
    x = 118,528.79

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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.