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Finding the Fourth Proportional to 219,935.90, 303,515.07 and 119,333.90

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Solution

The fourth proportional to 219,935.90, 303,515.07 and 119,333.90 is: 164,682.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,935.90 : 303,515.07 = 119,333.90 : x
  2. Step 2: Convert to fraction form
    219,935.90/303,515.07 = 119,333.90/x
  3. Step 3: Cross multiply
    219,935.90x = 303,515.07 × 119,333.90
  4. Step 4: Simplify right side
    219,935.90x = 36,219,637,011.87
  5. Step 5: Solve for x
    x = 36,219,637,011.87/219,935.90
  6. Step 6: Final answer
    x = 164,682.70

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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.