Home / 217,476.73-300,249.08-142,156.45

Finding the Fourth Proportional to 217,476.73, 300,249.08 and 142,156.45

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Solution

The fourth proportional to 217,476.73, 300,249.08 and 142,156.45 is: 196,261.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,476.73 : 300,249.08 = 142,156.45 : x
  2. Step 2: Convert to fraction form
    217,476.73/300,249.08 = 142,156.45/x
  3. Step 3: Cross multiply
    217,476.73x = 300,249.08 × 142,156.45
  4. Step 4: Simplify right side
    217,476.73x = 42,682,343,328.57
  5. Step 5: Solve for x
    x = 42,682,343,328.57/217,476.73
  6. Step 6: Final answer
    x = 196,261.66

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1.5x scale

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.