Home / 256,485.24-353,955.42-143,307.72

Finding the Fourth Proportional to 256,485.24, 353,955.42 and 143,307.72

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Solution

The fourth proportional to 256,485.24, 353,955.42 and 143,307.72 is: 197,767.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,485.24 : 353,955.42 = 143,307.72 : x
  2. Step 2: Convert to fraction form
    256,485.24/353,955.42 = 143,307.72/x
  3. Step 3: Cross multiply
    256,485.24x = 353,955.42 × 143,307.72
  4. Step 4: Simplify right side
    256,485.24x = 50,724,544,221.84
  5. Step 5: Solve for x
    x = 50,724,544,221.84/256,485.24
  6. Step 6: Final answer
    x = 197,767.89

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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.