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Finding the Fourth Proportional to 188,672.46, 260,154.63 and 145,554.54

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Solution

The fourth proportional to 188,672.46, 260,154.63 and 145,554.54 is: 200,700.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,672.46 : 260,154.63 = 145,554.54 : x
  2. Step 2: Convert to fraction form
    188,672.46/260,154.63 = 145,554.54/x
  3. Step 3: Cross multiply
    188,672.46x = 260,154.63 × 145,554.54
  4. Step 4: Simplify right side
    188,672.46x = 37,866,687,498.52
  5. Step 5: Solve for x
    x = 37,866,687,498.52/188,672.46
  6. Step 6: Final answer
    x = 200,700.66

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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.