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Finding the Fourth Proportional to 252,216.63, 378,346.47 and 72,302.67

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Solution

The fourth proportional to 252,216.63, 378,346.47 and 72,302.67 is: 108,460.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,216.63 : 378,346.47 = 72,302.67 : x
  2. Step 2: Convert to fraction form
    252,216.63/378,346.47 = 72,302.67/x
  3. Step 3: Cross multiply
    252,216.63x = 378,346.47 × 72,302.67
  4. Step 4: Simplify right side
    252,216.63x = 27,355,459,966.07
  5. Step 5: Solve for x
    x = 27,355,459,966.07/252,216.63
  6. Step 6: Final answer
    x = 108,460.18

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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.