Home / 274,580.96-378,918.88-153,723.36

Finding the Fourth Proportional to 274,580.96, 378,918.88 and 153,723.36

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Solution

The fourth proportional to 274,580.96, 378,918.88 and 153,723.36 is: 212,136.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,580.96 : 378,918.88 = 153,723.36 : x
  2. Step 2: Convert to fraction form
    274,580.96/378,918.88 = 153,723.36/x
  3. Step 3: Cross multiply
    274,580.96x = 378,918.88 × 153,723.36
  4. Step 4: Simplify right side
    274,580.96x = 58,248,683,401.04
  5. Step 5: Solve for x
    x = 58,248,683,401.04/274,580.96
  6. Step 6: Final answer
    x = 212,136.64

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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.