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Finding the Fourth Proportional to 302,378.80, 453,251.76 and 112,762.89

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Solution

The fourth proportional to 302,378.80, 453,251.76 and 112,762.89 is: 169,026.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,378.80 : 453,251.76 = 112,762.89 : x
  2. Step 2: Convert to fraction form
    302,378.80/453,251.76 = 112,762.89/x
  3. Step 3: Cross multiply
    302,378.80x = 453,251.76 × 112,762.89
  4. Step 4: Simplify right side
    302,378.80x = 51,109,978,355.19
  5. Step 5: Solve for x
    x = 51,109,978,355.19/302,378.80
  6. Step 6: Final answer
    x = 169,026.33

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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.