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Finding the Fourth Proportional to 307,003.92, 423,548.96 and 186,101.12

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Solution

The fourth proportional to 307,003.92, 423,548.96 and 186,101.12 is: 256,748.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,003.92 : 423,548.96 = 186,101.12 : x
  2. Step 2: Convert to fraction form
    307,003.92/423,548.96 = 186,101.12/x
  3. Step 3: Cross multiply
    307,003.92x = 423,548.96 × 186,101.12
  4. Step 4: Simplify right side
    307,003.92x = 78,822,935,830.84
  5. Step 5: Solve for x
    x = 78,822,935,830.84/307,003.92
  6. Step 6: Final answer
    x = 256,748.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.