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Finding the Fourth Proportional to 147,322.89, 220,984.74 and 47,490.39

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Solution

The fourth proportional to 147,322.89, 220,984.74 and 47,490.39 is: 71,235.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,322.89 : 220,984.74 = 47,490.39 : x
  2. Step 2: Convert to fraction form
    147,322.89/220,984.74 = 47,490.39/x
  3. Step 3: Cross multiply
    147,322.89x = 220,984.74 × 47,490.39
  4. Step 4: Simplify right side
    147,322.89x = 10,494,651,486.65
  5. Step 5: Solve for x
    x = 10,494,651,486.65/147,322.89
  6. Step 6: Final answer
    x = 71,235.72

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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.