Home / 279,516.96-385,728.48-152,190.36

Finding the Fourth Proportional to 279,516.96, 385,728.48 and 152,190.36

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Solution

The fourth proportional to 279,516.96, 385,728.48 and 152,190.36 is: 210,020.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,516.96 : 385,728.48 = 152,190.36 : x
  2. Step 2: Convert to fraction form
    279,516.96/385,728.48 = 152,190.36/x
  3. Step 3: Cross multiply
    279,516.96x = 385,728.48 × 152,190.36
  4. Step 4: Simplify right side
    279,516.96x = 58,704,156,233.45
  5. Step 5: Solve for x
    x = 58,704,156,233.45/279,516.96
  6. Step 6: Final answer
    x = 210,020.02

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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.