Home / 217,606.86-300,220.48-142,199.10

Finding the Fourth Proportional to 217,606.86, 300,220.48 and 142,199.10

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Solution

The fourth proportional to 217,606.86, 300,220.48 and 142,199.10 is: 196,184.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,606.86 : 300,220.48 = 142,199.10 : x
  2. Step 2: Convert to fraction form
    217,606.86/300,220.48 = 142,199.10/x
  3. Step 3: Cross multiply
    217,606.86x = 300,220.48 × 142,199.10
  4. Step 4: Simplify right side
    217,606.86x = 42,691,082,057.57
  5. Step 5: Solve for x
    x = 42,691,082,057.57/217,606.86
  6. Step 6: Final answer
    x = 196,184.45

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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.