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Finding the Fourth Proportional to 188,910.58, 283,421 and 70,554.70

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Solution

The fourth proportional to 188,910.58, 283,421 and 70,554.70 is: 105,852.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,910.58 : 283,421 = 70,554.70 : x
  2. Step 2: Convert to fraction form
    188,910.58/283,421 = 70,554.70/x
  3. Step 3: Cross multiply
    188,910.58x = 283,421 × 70,554.70
  4. Step 4: Simplify right side
    188,910.58x = 19,996,683,628.70
  5. Step 5: Solve for x
    x = 19,996,683,628.70/188,910.58
  6. Step 6: Final answer
    x = 105,852.64

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1.5x scale

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.