Home / 253,493.55-380,360.61-127,145.09

Finding the Fourth Proportional to 253,493.55, 380,360.61 and 127,145.09

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Solution

The fourth proportional to 253,493.55, 380,360.61 and 127,145.09 is: 190,777.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,493.55 : 380,360.61 = 127,145.09 : x
  2. Step 2: Convert to fraction form
    253,493.55/380,360.61 = 127,145.09/x
  3. Step 3: Cross multiply
    253,493.55x = 380,360.61 × 127,145.09
  4. Step 4: Simplify right side
    253,493.55x = 48,360,984,941.81
  5. Step 5: Solve for x
    x = 48,360,984,941.81/253,493.55
  6. Step 6: Final answer
    x = 190,777.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.