Home / 279,453.56-385,645.86-152,129.12

Finding the Fourth Proportional to 279,453.56, 385,645.86 and 152,129.12

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Solution

The fourth proportional to 279,453.56, 385,645.86 and 152,129.12 is: 209,938.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,453.56 : 385,645.86 = 152,129.12 : x
  2. Step 2: Convert to fraction form
    279,453.56/385,645.86 = 152,129.12/x
  3. Step 3: Cross multiply
    279,453.56x = 385,645.86 × 152,129.12
  4. Step 4: Simplify right side
    279,453.56x = 58,667,965,313.44
  5. Step 5: Solve for x
    x = 58,667,965,313.44/279,453.56
  6. Step 6: Final answer
    x = 209,938.16

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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.