Home / 243,136.28-364,397.63-123,223.36

Finding the Fourth Proportional to 243,136.28, 364,397.63 and 123,223.36

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Solution

The fourth proportional to 243,136.28, 364,397.63 and 123,223.36 is: 184,679.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,136.28 : 364,397.63 = 123,223.36 : x
  2. Step 2: Convert to fraction form
    243,136.28/364,397.63 = 123,223.36/x
  3. Step 3: Cross multiply
    243,136.28x = 364,397.63 × 123,223.36
  4. Step 4: Simplify right side
    243,136.28x = 44,902,299,741.70
  5. Step 5: Solve for x
    x = 44,902,299,741.70/243,136.28
  6. Step 6: Final answer
    x = 184,679.56

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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.