Home / 203,327.52-280,688.40-135,457.62

Finding the Fourth Proportional to 203,327.52, 280,688.40 and 135,457.62

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Solution

The fourth proportional to 203,327.52, 280,688.40 and 135,457.62 is: 186,995.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,327.52 : 280,688.40 = 135,457.62 : x
  2. Step 2: Convert to fraction form
    203,327.52/280,688.40 = 135,457.62/x
  3. Step 3: Cross multiply
    203,327.52x = 280,688.40 × 135,457.62
  4. Step 4: Simplify right side
    203,327.52x = 38,021,382,625.61
  5. Step 5: Solve for x
    x = 38,021,382,625.61/203,327.52
  6. Step 6: Final answer
    x = 186,995.75

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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.