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Finding the Fourth Proportional to 143,548.84, 215,297.66 and 43,684.84

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Solution

The fourth proportional to 143,548.84, 215,297.66 and 43,684.84 is: 65,519.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,548.84 : 215,297.66 = 43,684.84 : x
  2. Step 2: Convert to fraction form
    143,548.84/215,297.66 = 43,684.84/x
  3. Step 3: Cross multiply
    143,548.84x = 215,297.66 × 43,684.84
  4. Step 4: Simplify right side
    143,548.84x = 9,405,243,829.47
  5. Step 5: Solve for x
    x = 9,405,243,829.47/143,548.84
  6. Step 6: Final answer
    x = 65,519.47

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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.