Home / 256,072.12-353,379.30-142,895.08

Finding the Fourth Proportional to 256,072.12, 353,379.30 and 142,895.08

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Solution

The fourth proportional to 256,072.12, 353,379.30 and 142,895.08 is: 197,195.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,072.12 : 353,379.30 = 142,895.08 : x
  2. Step 2: Convert to fraction form
    256,072.12/353,379.30 = 142,895.08/x
  3. Step 3: Cross multiply
    256,072.12x = 353,379.30 × 142,895.08
  4. Step 4: Simplify right side
    256,072.12x = 50,496,163,343.84
  5. Step 5: Solve for x
    x = 50,496,163,343.84/256,072.12
  6. Step 6: Final answer
    x = 197,195.08

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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.