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Finding the Fourth Proportional to 289,732.56, 434,723.69 and 156,706.48

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Solution

The fourth proportional to 289,732.56, 434,723.69 and 156,706.48 is: 235,127.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,732.56 : 434,723.69 = 156,706.48 : x
  2. Step 2: Convert to fraction form
    289,732.56/434,723.69 = 156,706.48/x
  3. Step 3: Cross multiply
    289,732.56x = 434,723.69 × 156,706.48
  4. Step 4: Simplify right side
    289,732.56x = 68,124,019,232.51
  5. Step 5: Solve for x
    x = 68,124,019,232.51/289,732.56
  6. Step 6: Final answer
    x = 235,127.25

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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.