Home / 218,931.70-328,244.82-112,108.09

Finding the Fourth Proportional to 218,931.70, 328,244.82 and 112,108.09

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Solution

The fourth proportional to 218,931.70, 328,244.82 and 112,108.09 is: 168,083.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,931.70 : 328,244.82 = 112,108.09 : x
  2. Step 2: Convert to fraction form
    218,931.70/328,244.82 = 112,108.09/x
  3. Step 3: Cross multiply
    218,931.70x = 328,244.82 × 112,108.09
  4. Step 4: Simplify right side
    218,931.70x = 36,798,899,822.59
  5. Step 5: Solve for x
    x = 36,798,899,822.59/218,931.70
  6. Step 6: Final answer
    x = 168,083.93

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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.