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Finding the Fourth Proportional to 301,298.88, 451,950.90 and 76,659.51

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Solution

The fourth proportional to 301,298.88, 451,950.90 and 76,659.51 is: 114,989.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,298.88 : 451,950.90 = 76,659.51 : x
  2. Step 2: Convert to fraction form
    301,298.88/451,950.90 = 76,659.51/x
  3. Step 3: Cross multiply
    301,298.88x = 451,950.90 × 76,659.51
  4. Step 4: Simplify right side
    301,298.88x = 34,646,334,538.06
  5. Step 5: Solve for x
    x = 34,646,334,538.06/301,298.88
  6. Step 6: Final answer
    x = 114,989.92

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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.