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Finding the Fourth Proportional to 219,873.37, 303,614.63 and 138,337.57

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Solution

The fourth proportional to 219,873.37, 303,614.63 and 138,337.57 is: 191,024.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,873.37 : 303,614.63 = 138,337.57 : x
  2. Step 2: Convert to fraction form
    219,873.37/303,614.63 = 138,337.57/x
  3. Step 3: Cross multiply
    219,873.37x = 303,614.63 × 138,337.57
  4. Step 4: Simplify right side
    219,873.37x = 42,001,308,679.92
  5. Step 5: Solve for x
    x = 42,001,308,679.92/219,873.37
  6. Step 6: Final answer
    x = 191,024.99

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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.