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Finding the Fourth Proportional to 219,759.69, 302,725.50 and 187,388.89

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Solution

The fourth proportional to 219,759.69, 302,725.50 and 187,388.89 is: 258,133.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,759.69 : 302,725.50 = 187,388.89 : x
  2. Step 2: Convert to fraction form
    219,759.69/302,725.50 = 187,388.89/x
  3. Step 3: Cross multiply
    219,759.69x = 302,725.50 × 187,388.89
  4. Step 4: Simplify right side
    219,759.69x = 56,727,395,419.70
  5. Step 5: Solve for x
    x = 56,727,395,419.70/219,759.69
  6. Step 6: Final answer
    x = 258,133.76

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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.