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Finding the Fourth Proportional to 188,573.96, 282,984 and 70,339.88

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Solution

The fourth proportional to 188,573.96, 282,984 and 70,339.88 is: 105,555.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,573.96 : 282,984 = 70,339.88 : x
  2. Step 2: Convert to fraction form
    188,573.96/282,984 = 70,339.88/x
  3. Step 3: Cross multiply
    188,573.96x = 282,984 × 70,339.88
  4. Step 4: Simplify right side
    188,573.96x = 19,905,060,601.92
  5. Step 5: Solve for x
    x = 19,905,060,601.92/188,573.96
  6. Step 6: Final answer
    x = 105,555.72

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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.