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Finding the Fourth Proportional to 219,887.40, 303,439.02 and 123,092.40

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Solution

The fourth proportional to 219,887.40, 303,439.02 and 123,092.40 is: 169,864.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,887.40 : 303,439.02 = 123,092.40 : x
  2. Step 2: Convert to fraction form
    219,887.40/303,439.02 = 123,092.40/x
  3. Step 3: Cross multiply
    219,887.40x = 303,439.02 × 123,092.40
  4. Step 4: Simplify right side
    219,887.40x = 37,351,037,225.45
  5. Step 5: Solve for x
    x = 37,351,037,225.45/219,887.40
  6. Step 6: Final answer
    x = 169,864.38

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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.